Answers
Answer:
A
Explanation:
Dominant alleles are greater than recessive alleles
Related Questions
Suppose Stephen breeds snakes and wants to optimize production of offspring with both black bodies and brown eyes, which are coded for by two genes with the recessive alleles b and e, respectively. In snakes, B codes for brown bodies and E codes for red eyes. Stephen crosses two heterozygotes that produce 544 offspring. How many of these 544 offspring are predicted to have both black bodies and brown eyes?
Answers
Answer:
34
Explanation:
B codes for brown bodies.
E codes of red eyes.
b and e together code for black bodies and brown eyes.
Heterozygous brown body snake would have the genotype Bb.
Heterozygous red eyes would have the genotype Ee.
Individuals that are heteozygous for both trait would have the genotype BbEe.
Crossing two heterozygous individuals:
BbEe x BbEe
Progeny:
9 BBEE
3 B_ee
3 bbE_
1 bbee
Recall that black bodies and brown eyes requires be, hence the ratio of the progeny with black bodies and brown eyes is 1/16.
If the total number of offspring produced is 544, the number predicted to have black bodes and brown eyes would be:
1/16 x 544 = 34
Please help !!!!!!!!!!!
Answers
Answer:
1) Weathering, Erosion, Disposition
2) Physical weathering is the breakdown of large rocks into fragments by physical forces; the chemical composition of the rock is not changed. Chemical weathering is the breakdown of rock by chemical reactions; the chemical composition is changed.
3) The four forces of erosion are water, wind, gravity, and glaciers.
4) Because the velocity of the river slows down a great deal when it reaches the large body of water, the sediment that the river was carrying is deposited along the mouth of the large body of water.
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Abrasion: Abrasion is the breaking down and wearing away of rock material by the mechanical action of another rock. Three agents of physical weathering that cause abrasion are moving water, wind, and gravity. Also, rocks suspended in thence of a glacier can cause abrasion of other rocks on Earth's surface. This would be a prime example of physical weathering, or mechanical weathering.
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Acid Precipitation: Acid rain causes less erosion than normal rainwater does. Rainwater can break down rocks by dissolving minerals in the rocks. Acid rain is rainwater that is more acidic than normal rainwater. Acid rain can also dissolve the minerals in rocks faster than normal rainwater can. This is chemical weathering.
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Animal actions: Animal and plant mobility is a factor in biological weathering. For instance, a plant may grow in a gap in a rock and, as its roots spread, cause the fracture to expand. A rabbit may also burrow into a crack in a rock, making it wider and eventually separating the rock. This is an example of physical weathering.
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Ice wedging: Ice wedging ,sometimes known as frost wedging ,can also cause rocks to break apart. Ice wedging causes cracks in rocks to expand as water seeps in and the water freezes and expands opening the crack further. Rocks formed under pressure deep within earth can become exposed at the surface. This is physical weathering
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Oxidation: Oxidation is another kind of chemical weathering. It occurs when oxygen from air dissolves in water and combines with chemicals in the rocks to form oxides. if the rock contains a lot of iron, then oxidation produces a brown material called iron oxide. This looks like rust on the rock.
What is the difference between weathering erosion and deposition?Weathering is the chemical and mechanical breakdown of exposed rock. The chemical changes alter the minerals and make them softer, and mechanical weathering physically breaks rock into smaller and smaller pieces.
Erosion is the REMOVAL of those chemically and mechanically softer and broken pieces of rock from their original locations, by gravity, water, ice or wind. Erosion is transport (and as a result, fresh unaltered rock is exposed to wind, water and weather, and THAT becomes weathered in turn). The material being transported is ‘sediment’: sand, silt, mud and gravel.
Deposition is when the weathered and eroded (transported) material is dropped and settles down elsewhere, forming a ‘deposit’ of transported rock material.
If this deposit remains undisturbed long enough, and is buried by enough arriving material, it will eventually go through compaction and chemical reactions forming cement between the grains - thus resulting in a brand new, sedimentary rock.
Weathering, erosion, transport, deposition, compaction and cementation are part of the ‘rock cycle’.
How can the complete rock cycle be described?Let’s start with basalt that form at mid ocean spreading centers. At mid ocean spreading centers rock material from the earth’s mantle continuously melts due to continuous decreasing in pressure from the oceanic crust spreading at this point. The molten rock quickly cools at the earth’s surface and forms rock known as basalt that makes up the oceanic crust all over the world. The newly produced oceanic crust rock slowly moves towards a boundary with a continental crust where the oceanic crust subducts beneath the continental crust due to the oceanic crust having a higher density than the continental crust. This is where things get a bit more interesting.
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You have two carts, one which is empty and has mass m. The second cart is of the same mass but
loaded with twice the mass of the empty cart i.e. it has mass 3m. You push each of them (one at a time)
with the same constant force, over the same distance, starting from rest. After you have pushed them
through this distance, you remove the force. How will the kinetic energy of the loaded and empty carts
compare to each other?
2. In the same experiment as in the previous question, how will the speed of the loaded and empty
carts compare to each other?
3. In the previous question suppose the speed of the empty cart is ve and the speed of the loaded cart is
v. How is ve related to v?
4. What is 1 Joule of work?
Answers
Their kinetic energies would be the same. The cart is empty and has a mass m. The second cart is of the same mass but loaded with twice the mass of the empty cart. 1 joule of work or energy is equal to the work done by a force of one newton acting through one meter.
What is kinetic energy?
A moving item or particle might have the power of a certain sort called kinetic energy. When work, which entails the transfer of energy, is done on an object by applying a net force, that object acquires kinetic energy. Kinetic energy, which depends on an item or particle's mass and velocity of motion, is a property of motion. Any combination of vibration, axis rotation, translation (or movement along a route from one place to another), and translation are all examples of motion.
The kinetic energy of each would be equal.
This is because the force, F, acting on them moves the same distance, d, hence the work done by the force is W = Fd.
Using the ideas of work-kinetic energy, let's now
W = K, where K is the difference in the kinetic energy of the carts.
Given that the effort done was the same for both carts, the change in kinetic energy would also be equal.
Since they start at rest, K = K' - K = K' - 0 = K'.
Therefore, the kinetic energies of the carts would be the same.
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. According to Mendel’s law of segregation, alleles A and a segregate from each other and
appear in equal numbers among the gametes. But Mendel did not know that his plants
were diploid. In fact, because plants are frequently tetraploid, he could have been
unlucky enough to have started with peas that were 4n rather than 2n. Let us assume that
Mendel’s peas were tetraploid, that every gamete contains two alleles, and that the
distribution of alleles to the gamete is random. Suppose we have a cross of AAAA x aaaa
where A is dominant, regardless of the number of a alleles present in an individual.
a. What will be the genotype/s of the F1 peas?
b. If the F1 peas are selfed, what will be the phenotypic ratios in the F2 peas?
I
Answers
The cross of AAAA x aaaa will result in all heterozygous Aa offspring in the F₁ generation. This is because each parent contributes two alleles, and in this case, all four alleles from one parent are dominant A alleles, while all four alleles from the other parent are recessive alleles.
If the F1₁ peas are selfed, the phenotypic ratios in the F₂ generation will be 3:1 dominant to recessive. This is because the F₁ generation is all heterozygous Aa, and when these individuals self-fertilize, the dominant A allele and recessive allele will segregate from each other and appear in equal numbers among the gametes.
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Alana summarized what happens when a ball sitting on top of a grassy hill rolls down the hill.
The motionless ball has potential energy. Once the ball starts to roll down the hill, new kinetic energy is made. As the ball rolls across the grass, it slows down. The kinetic energy of the ball is converted to other forms of energy.
Which best describes Alana’s error?
The motionless ball does not have energy because it is still.
Kinetic energy is not made; it is a result of energy transformation.
The ball cannot slow down unless someone touches it.
The energy is not converted; it disappears.
Answers
Answer:
It's actually B that guy is wrong on Edge.
Explanation:
Alana's error regarding the energy of the ball is that kinetic energy is not made; it is a result of energy transformation. The second option is true regarding the energy conversion.
What are the various types of energy?The law of conservation of energy says that energy is neither created nor destroyed but only converted from one form to another, such as from the kinetic to the potential and vice versa. Here, the ball is placed at the top, where it has no motion, but the ball has potential energy, and that potential energy gets converted into kinetic energy when the ball starts to roll down the hill. After sometime, the ball spontaneously stopped on the ground, and the kinetic energy was converted into potential energy.
Hence, Alana's error regarding the energy of the ball is that kinetic energy is not made; it is a result of energy transformation. The second option is true regarding the energy conversion.
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Weathering – Decide whether the statement is an example of chemical or mechanical weathering. Write “M” for mechanical or “C” for chemical in the space provided.
____ 1. Mosses growing on the surface of rocks, producing pits in the rock.
____ 2. The wedging of tree roots along natural joints in granite outcrops.
____ 4. The oxidation of minerals that contain iron.
____ 5. Animal burrows in soil that let in water and air.
____ 6. Repeated freezing and thawing of water that cracks rock.
____ 7. The action of water, salt, and air on car fenders and panels.
____ 8. Acids from plant roots which break up rock.
____ 9. Formation of potholes in streets during severe winters.
____ 10. Lifted sections of sidewalk along tree-lined streets.
____ 11. A small rock falling from a cliff.
____ 12. Feldspar mixing with acidic groundwater and producing clay minerals.
____ 13. Halite in rocks dissolving in water.
Answers
Answer:
m
m
m
c
m
m
c
c
m
m
m
c
c
Explanation:
A cell is observed under HP to be about half the field of diameter. A student draws the cell 25 cm in length. What is the magnification of the drawing?
The diameter is 8 cm.
Answers
The magnification of the drawing is 6.25 X .
What is magnification of an image?Magnification of an image is the ability of a microscope to increase or magnify the size of an object when the object is viewed through the microscope.
Magnification of a microscope = image height/object heightMicroscopes are used to observe objects which are very tiny in order to see their features more clearly.
Considering the cell observed under HP by a student:
The term HP means high power which describes the magnification strength of the microscope.
The high power field of view of the microscope is given as 8 cm.
Half the field of view of 8 cm is 8 cm / 2 = 4 cm
Magnification of the drawing is obtained by diving the drawing size by the actual specimen size.
drawing size = 25 cm
specimen size = 4 cm
Magnification of the drawing = 25 cm / 4 cm
Magnification of the drawing = 6.25 X
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What are the Monomer and Polymer of the 4 Macromolecules?
Answers
Answer:
Monomers are the building blocks of the four basic macromolecules of life- monosaccharides are the monomers of carbohydrates, amino acids are the monomers of proteins, glycerol/fatty acids are the monomers of lipids, and nucleotides are the monomers of DNA.
Explanation:
i hope it will help you
if you find a new species of algae floating on the surface of a coastal zone, you would likely consider it a type of ____.
Answers
If you find a new species of algae floating on the surface of a coastal zone, you would likely consider it a type of phytoplankton.
Phytoplankton uses sunlight, nutrients, carbon dioxide, and water to manufacture oxygen and nutrients for other organisms. Earth is said to be covered by the ocean, and phytoplankton are the main source of producing up to 50% of oxygen that breathable.
Phytoplankton are microscopic organisms that live in watery environments, both salty and fresh. Many phytoplankton are bacteria, some are , protists and most are single-celled plants.
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Please someone help me!!
Answers
I need help please
Describe Earth's
early atmosphere
Answers
Answer: Earth's early atmosphere was formed mainly of gases that came from volcanoes and was also built up of methane, hydrogen sulfide and carbon dioxide.
Explanation:
Mark this and return
How is energy related to the change of state
represented by the model?
O Atoms gain energy as a gas changes to a solid.
Atoms gain energy as a gas changes to a liquid.
Atoms lose energy as a gas changes to a solid.
Atoms lose energy as a gas changes to a liquid.
Answers
The energy is related to the change of state represented by the model by: D. Atoms lose energy as a gas changes to a liquid.
What is Atoms?A model of the transition from a gas to a liquid is shown in the accompanying image. It demonstrates how atoms or molecules change from being widely scattered as in a gas to being concentrated as in a liquid.
The atoms in this process move from a higher-energy state to a lower-energy state releasing or losing energy in the process. The most common kind of energy loss is heat.
Therefore the correct option is d.
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radical mastectomy, once a common treatment for breast cancer, involved removal of the pectoralis major along with the breast. What functional impairments would result from this? What synergists could a physical therapist train a patient to use to recover some lost function?
Answers
Historically, the pectoralis major and the breast were both removed during a radical mastectomy, a standard treatment for breast cancer. What a functional disability.
What kind of functional damage follows a radical mastectomy?After a mastectomy versus a breast-saving procedure, lymphoedema of a upper limb and restricted shoulder movements are more frequent (3, 6, 8). 18–23% of patients have been observed to have upper limb muscle weakness (10–12). Patients have weakness in 13% of cases two years following surgery (5).
When having a radical mastectomy, which muscles are cut out?extreme mastectomy The muscles of the chest wall under the breast, the entire breast, and all lymph nodes underneath the arm are all removed. Radical mastectomy remained the most popular type or breast cancer surgery for a long time, but it is now rarely performed.
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8 characteristics of life for frogs
Answers
Frogs are living organisms and exhibit the following 8 characteristics of life: Cellular organization, reproduction, metabolism, Homeostasis, response to stimuli, Growth and development, adaptation and Evolution.
What more should you know about some of the above listed characteristics of a frog's life?Frogs are composed of cells, which are organized into tissues, organs, and organ systems. They reproduce sexually, with females laying eggs that are fertilized externally by males. Frogs require energy to carry out their life processes, and they obtain this energy through the process of metabolism, which involves the breakdown of nutrients to release energy. Frogs are able to maintain a stable internal environment despite changes in their external environment, such as temperature or humidity.
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the organisms that feed on dead and decaying matter are called
A. Saprotrophs
B. Autotrophs
C. Heterotrophs
D. Parasite
Answers
The organisms that feed on dead and decaying matter are called Saprotrophs.
An organism that feeds on dead and decaying organic matter is called a saprotroph. These organisms are heterotrophic, which means that they obtain their food from other sources. They are important in the ecosystem because they break down dead organic matter and recycle it back into the soil, making nutrients available to other living organisms
Answer:
A. Saprotrophs
Explanation:
Saprotrophs are organisms that obtain their nutrients by feeding on dead and decaying matter. They play a crucial role in the ecosystem by decomposing organic material and recycling nutrients back into the environment.
These organisms secrete enzymes that break down complex organic compounds into simpler substances, such as sugars and amino acids, which they can absorb and utilize for their own growth and energy needs. Examples of saprotrophs include fungi (such as mushrooms and molds) and certain bacteria.
Unlike autotrophs, which can produce their own food through photosynthesis or chemosynthesis, saprotrophs rely on external sources of organic matter for their nutrition. They actively decompose dead plants, animals, and other organic materials, aiding in the process of nutrient recycling and decomposition.
Heterotrophs, on the other hand, are a broader category of organisms that obtain their nutrients by consuming other living or dead organisms. This includes saprotrophs, as well as other types of organisms such as herbivores, carnivores, and omnivores.
Parasites, meanwhile, are organisms that live in or on other organisms, known as hosts, and obtain their nutrients from the host while causing harm or damage to it. Unlike saprotrophs, parasites typically rely on a living host for their sustenance rather than feeding on dead and decaying matter.
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organism that must get energy from their environment are classified as?
Answers
Answer:
Heterotroph
Explanation:
Hi, According to what I understand, the term is heterotroph, not hetrotrop [Tropism is concerned with how organisms react to a certain stimulus]
The word "heterotrophy" refers to organisms that do not synthesis their food or carbohydrates in the presence of photosynthetic pigment using CO2, water, or solar energy. With the exception of Euglena, they cannot synthesis their food or carbohydrates (it is unicellular and contains photosynthetic pigment). Carnivores, herbivores, etc. are heterotrophs.
What are Bald eagle homologous structures
Answers
The wing of a bald eagle is homologous to the wing of a penguin. Homologous structures are structures that are of similar evolutionary origin.
How do we explain?Homologous structures are described as anatomical features found in different species that have a common evolutionary origin. These structures may have different functions in different organisms, but they share a similar underlying structure and can be traced back to a common ancestor.
The wing of a bald eagle and the wing of a penguin are considered homologous structures because they both evolved from a common ancestral structure, even though they serve different purposes which is flight in the case of the bald eagle and swimming in the case of the penguin.
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Helppppp. Are the moving up, down, or both ways?
Answers
The molecules in the given image are transported down the concentration gradient. Thus, the correct option is C.
There are two ways by which molecules are transported across a membrane which are active transport and passive transport.
Diffusion is a type of passive transport, that is, it does not involve the expenditure of energy.
In diffusion, the transport of molecules across the membrane occurs from a region of high concentration to a region of low concentration, that is, transport occurs down the concentration gradient.
Thus, the molecules in the picture are transported through diffusion, that is down the concentration gradient. Thu,the correct option is C.
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Earth's temperature has increased slightly in the last 100 years. Many scientists believe that
the increase is related to human activities, particularly the burning of fossil fuels. What gas
produced in this process has been most closely linked to rising atmospheric temperatures?
A) soot
B) chlorofluorocarbons
C) nuclear waste
D) carbon dioxide
Answers
The gas produced in the burning of fossil fuels that has been most closely linked to rising atmospheric temperatures is carbon dioxide. Option D
What is the burning of fossil fuel?
As a byproduct of combustion when fossil fuels like coal, oil, and natural gas are used to produce energy, carbon dioxide is discharged into the atmosphere.
As a greenhouse gas, carbon dioxide absorbs heat from the sun inside the Earth's atmosphere, creating the greenhouse effect, which causes global warming. The Earth's natural greenhouse effect, which keeps the globe warm enough to support life, is caused by this phenomena.
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suggest how attitudes and safety skills may deal with the impact of environmental factors at a personal level
Answers
Answer:
Explanation: Human approach, attitudes and adherence to the safety skills does deal with the impact over environmental factors at a personal level. We have to be more careful and cautious while we pursue our own habits, and activities, with the aim of posing less harm to the environment in any way.
What is the dna molecule composed of
Answers
Answer:
Each strand of a DNA molecule is composed of a long chain of monomer nucleotides. The nucleotides of DNA consist of a deoxyribose sugar molecule to which is attached a phosphate group and one of four nitrogenous bases: two purines (adenine and guanine) and two pyrimidines (cytosine and thymine
Explanation:
The molecule of DNA is generally composed of nucleotides. These are the organic compounds that are considered the monomers or the building blocks of DNA.
What is DNA?DNA stands for Deoxyribonucleic acid. It is considered the most common type of genetic material in living organisms. It encodes the genetic information of an individual and governs the process of transformation of traits and genotypes from one generation to another.
A molecule of DNA significantly consists of two long polynucleotide chains which are generally composed of four kinds of subunits. These subunits are formed from a pentose sugar, a nitrogenous base, and a phosphate group.
Apart from this, hydrogen bonds are also present in order to hold these compounds and make a strong chain that governs the functional property at normal conditions.
Therefore, the molecule of DNA is generally composed of nucleotides.
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Protists vary in structure and function more than any other group of organisms. However, here are some common traits: a.All have membrane-bounded organelles, and so are ___________________. b.Most are single-celled, or ___________________________. c.They get their food in several ways. Some contain chloroplasts and do photosynthesis, and so are considered __________________. Others ingest food particles and so are ____________________.
Answers
Answer:
a. eukaryotes
b. unicellular
c. autotrophs; heterotrophs
Explanation:
Protists represent a separate kingdom of eukaryotic organisms (ie., organisms whose cells have a nucleus). The most important features of protists include: 1- they are unicellular organisms, 2-contain mitochondria, 3-can be parasites, and 4-generally live in optimal conditions in moist or aquatic environments. In the past, protists were divided into Protozoa (animal-like organisms) and Protophyta (plant-like organisms), which nowadays we know are heterotrophic (also often parasitic) and photosynthetic protists, respectively.
Six white-tailed deer and six sika deer were enclosed in a pasture for observation during an eight-year study in central Texas. White-tailed deer are a native species to central Texas, while sika deer are a nonnative species to central Texas. White-tailed deer feed on flowering plants and the tips of trees and shrubs but do not eat grass. Sika deer feed on flowering plants, the tips of trees and shrubs, and grass. All other grazing animals were kept out of the pasture during the study. The number of sika deer more than doubled after the eight years, while the population of white-tailed deer decreased by 50 percent. Which of the following statements best supports the results from the study?
Answers
The sika deer out competed the white-tailed deer in consuming flowering plants and shrubs.
This statement best supports the results from the study.
In an ecosystem, organisms need homes and resources like nutrients to develop, reproduce, and survive. In a habitat, there are scarce resources for which all organisms contend. An ecosystem supports a wide range of species and holds thousands of them.
Competition can be divided into two primary categories: intraspecific and interspecific. While intraspecific competition refers to competition inside a species, interspecific competition is the competition for resources among individuals of different species. Similar species fight for resources and have similar needs.
When two species fight for the same resources, interspecific competition results in one of two outcomes: either the weaker species becomes extinct or occupies a different niche.
Specialists are what?
Animals classified as specialists are those that efficiently utilise their resources and have few rivals as a result.
Except for option (b), none of the other possibilities are true.
White-tailed deer are not specialists since their diets are nearly identical to that of sika deer.
The white-tailed deer population will be impacted if parasites had an impact on the sika deer population.
All animals will be impacted if local climate changes have an impact on plant resources.
Therefore, choice b is the right choice.
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Six white-tailed deer and six sika deer were enclosed in a pasture for observation during an eight-year study in central Texas. White-tailed deer are a native species to central Texas, while sika deer are a nonnative species to central Texas. White-tailed deer feed on flowering plants and the tips of trees and shrubs but do not eat grass. Sika deer feed on flowering plants, the tips of trees and shrubs, and grass. All other grazing animals were kept out of the pasture during the study. The number of sika deer more than doubled after the eight years, while the population of white-tailed deer decreased by 50 percent.
a. The sika deer are generalists, while the white-tailed deer are specialists.
b. The sika deer out competed the white-tailed deer in consuming flowering plants and shrubs.
c. Parasites infected the sika deer population but did not infect the white-tailed deer population.
d. Change in the local climate reduced the availability of food resources for the white-tailed deer population
your colleagues in the legal department are preparing to take a case to trial. to help them, write your description of the process of dna fingerprinting so a jury could understand it.
Answers
The DNA fingerprinting procedure includes:
Isolation of DNA from skin, hair, or blood cells.The isolated DNA is then cut using restriction enzymes and the fragments of various lengths are analyzed.With the help of gel electrophoresis various DNA fragments are obtained. The gel is then immersed in a NaOH solution which denatures the DNA into single strands.Southern blotting was used to transfer DNA from the gel onto a nitrocellulose membrane. Then, this DNA is hybridized with a radioactive probe.Fraction patterns are considered unique for each individual, which is compared with the suspect.With the help of X-ray films, DNA samples showing radioactivity are compared.DNA fingerprinting is considered as a chemical test, which displays the genetic makeup of a person or other living organism. This method was developed by Alec Jeffrey in 1984. This method is used as a paternity and maternity test, criminal identification, and for personal identification.
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What are the 2 types of cells (not plant and animal)? Describe each type. Are you made of prokaryotic or eukaryotic cells? Explain why you chose your answer. Are bacteria prokaryotic or eukaryotic? Explain why you chose your answer. What parts do all cells have in common? List at least 2. Create Cell Analogies: for example, compare a cell to a castle The cell wall is like the walls because it protects the castle The cell membrane is like the drawbridge because it lets certain things in and out The vacuoles are like the storage rooms because they both store things Your turn! Pick an item like an airplane, basketball gym/baseball field, house,or school to complete your own analogies below. You can pick different organelles as well. See examples above. 5. The ___________is like ________________because _____________________________ 6. The ___________is like________________because ______________________________ 7. The ___________is like ________________because _____________________________ Label the numbered parts of the cell: 8. __________________ 9. _________________ 10._________________ 11._________________ Refer to the onion image to answer the following 2 questions: 12. Using the onion cell diagram above, which organelle is responsible for the greenish color? 13. Which organelle is the red arrow pointing towards? 14. Both plant and animal cells contain mitochondrion however they are not in equal amounts. Between the cheek and onion cells, which one do you think would contains the greater amount of mitochondrion and why? 15. Compare in your own words, at least 2 differences in plant and animal cells. 16. Why does a plant cell need a larger vacuole? 17. Animal cell do not have chloroplasts. Why not? 18. What are the 3 components of the cell theory? Put in your own words. 19. Choose one part of the Cell Theory and describe an experiment you could do that would give evidence to support your claim. 20. How can a microscopic paramecium and a large giraffe both be described by the cell theory?
Answers
Answer:
u loaded the whole assignment here which i think was unnecessary anyways i’m working on the assignment rn in 8th grade so my answers were
Explanation:
1 Eukaryotic and prokaryotic prokaryotic cells have cell walls giving it a more defined shape and eukaryotic do not. 2. We have prokaryotic cells inside of us,but we are eukaryotic organisms because we are also animals. 3. Bacteria are prokaryotic and unicellular. 4. ribosome and mitochondrion. 5. for 5,6,and 7 those i have yet to do. 8. Nucleus 9. vacuole 10. ribosome 11. cell wall 12. chloroplast 13 nucleus and that’s as far as i’ve gotten so far
-Eukaryotic cell
-prokaryotic cell
Description:Eukaryotic cell: These are organisms who have a nucleus enclosed within a nuclear envelop. It does not have a cell wall unlike prokaryotes. It has mitochondria and other cell organelles.
Prokaryotic cell: Organisms with no distinct nucleus and other major cell organelles.
We humans are made up of Eukaryotic cell type as we have membrane bounded nucleus and all the essential major organelles to perform vital body function. Humans have complex organization of cells. Cells have cytoskeleton and organelles surrounded by cytoplasm.Bacteria are prokaryotic, as they have cell wall made of peptidoglycan, they lack nucleus and membrane bounded organelles. Hence considered to be unicellular life forms.Similarities between prokaryotes and Eukaryotes:-Both have cell membrane-Both have genetic material- Both have ribosome-Both have cytoplasm-Both have vacuole5. The cell wall is like House because it protects the family members inside as cell wall protects the substance inside the cell.6. The cell membrane is like airplane because it allows passenger to come in and go out the way cell membrane allows substances to enter and leave.7.The vacuoles is like a basketball because both acts as storage, basket ball stores air and vacuole store other substance.8.nucleus9.Vacuole10.Cytoplasm11. Cell wall12.Chloroplast13. Nucleus14.Cheek will have greater number of Mitochondria as great function and more energy required which will be released in form of ATP.15. Differences:1.Animal cell do not have cell wall whereas plant cells have cell wall.
2. Animal cells have several small vacuoles whereas plant cells have one large nucleus.
3.Plant cells have chloroplast but Animal cells don not.
16.Plants have single large vacuole as it performs two main functioni)To keep the plant upright
ii)To store water
Large vacuole protect cell from potential harm.
17.In plants chloroplast main function is to synthesis food whereas in humans there is no such need as they get sugar from the food they eat.18. components of cell theory:1. All living things are composed of cell.
2.Cells are basic units of structure and function for two living beings.
3.All cells come from pre existing cells.
19. All living things are composed of cell:Experiment:
Cut sections can be taken of Human hair, onion and bacterial colony. Slides can be prepared and viewed under microscope to confirm the presence of cell.
20. They can be distinguished on basis of microscopic result A Giraffe is a multicellular organism hence multiple cells will me visible under microscope where as a Paramecium is single cell organism.Link to related question:
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Observe: Hold your cursor over one of the insects. The two rod-like structures under Genotype on the right side of the Gizmo represent chromosomes. The three letters next to each chromosome represent alleles. Which alleles does the insect have
Answers
Complete question:
Question: Where does variation in a population come from?
1. Observe: Hold your cursor over one of the insects. The two rod-like structures under the Genotype on the right side of the Gizmo represents chromosomes. The three letters next to each chromosome represent alleles.
Which alleles does the insect have? ____________________________________________
The alleles carried on an organism’s chromosomes make up the organism’s genotype
Answer:
Allele = WGenotype = WWW WWWExplanation:
First, you need to set red = 100, gree = 255, and blue = 50.You will see that the average fitness of individuals changed to 53%. Natural selection should be selected. Now, you need to click on any of the insects, and it will appear the chromosome on the right. You will see the word Genotype, and under it, you will see the chromatids.You will see that each chromatid has three alleles. Next to each allele, you will see which version of the gene is (W). In this particular example, all the alleles are the same, so all of them express white. Both chromatids carry only W alleles.
Think about alleles as an alternative form of the gene. So on this chromosome, we have only three genes but eight possible alternatives, which will be coding for white, red, blue, green, cyan, magenta, yellow, or black. The color expression will depend on the individual´s genotype.
In this case, the selected insect carries only the W allele, and its phenotype is white. The genotype of this insect is WWW WWW.
Note: If you click on any other insect, you will find the same genotype for all of them.
However, consider that depending on the environmental conditions and the selective pressures, these alleles might change. Individuals might carry other alleles that code for another color instead of having only W alleles.
You will find the image in the attached files.
HURRRYYYYYY
Which organelle controls cellular activity comparable to the way the brain controls body activity?
A. Cytoplasm
B. Cell membrane
C. Vacuole
D. Nucleus
Answers
Answer:
B. Cell Membrane
Explanation:
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The organelle controls cellular activity comparable to the way the brain controls body activity is cell membrane. Thus, option B is correct.
What is cell membrane?Cell membrane has been defined as the wall that differentiate and protect the inner structure of cell from the outer environment. The main function of the cell membrane has to keep away the toxic material out of the cell. The cell membrane contain channels as well as receptors that give permission to only selective permeable membrane to enter into the cell.
Tissue has been combined together and they form muscles and these muscles are of several types and after that muscles combined together and they form organ and each of the organ of the body has been made up of different types of tissue. Like heart has made up of such type of tissue that never takes rest.
At last the organs or we can say that two three organs combined together to form the organ system of the body such as nervous system, respiratory system, and these systems combinedly form the whole organism.
Therefore, The organelle controls cellular activity comparable to the way the brain controls body activity is cell membrane. Thus, option B is correct.
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Which of the following is a shrub ?
(a) Tomato (b) Mint (c) Coconut (d) Lemon
Answers
Answer: Mint or Lemon (most likely mint)
Explanation:
Its not Coconut or Tomato
How did the comb jelly become invasive?
Answers
Answer:
The comb jelly (Mnemiopsis leidyi) became invasive in the Black Sea in the early 1980s, likely due to its introduction via ballast water from ships from the east coast of the United States. Its rapid spread and high reproductive rate allowed it to become the dominant species in the Black Sea, out-competing native species for food and resources. It has since spread to other parts of the world, including the Mediterranean Sea and the Caspian Sea.
Explanation:
Lab 9: Kingdom Plantae (12 Points) Introduction Plants are defined as multicellular eukaryotes with cell walls made of cellulose. Nearly all of them contain chlorophyll and carry out photosynthesis. Being photoautotrophs, plants can make all their own organic molecules. All they need is energy from light, carbon from carbon dioxide, water, and various elements (like N, P, K, Ca, and Mg). Water can be absorbed into a plant by osmosis, but it can only travel a few cells away from a source. In order to transport water long distances, some groups of plants have specialized tissues (vascular tissue). Plants without vascular tissues must live in wet areas and cannot grow very tall. Consult the plant lecture, slides, and links on Canvas for more information on defining features of plants and groups of plants. Part 1: Comparing major groups of plants Within the plant kingdom, biologists separate plants into four major groups: bryophytes (mosses and llverworts), pteridophytes (ferns), gymnosperms (conifers), and anglosperms (flowering plants). The separations are primarily based on anatomical structures, particularly the ones they use to transport water in their bodies, and on the different ways in which plants reproduce sexually. **What to submit for this activity** Use the information from lectures, the textbook, and any other sources of your choice to fill out the table comparing the four major groups of plants. Submit your completed table as part of what you upload to the Canvas lab assignment for this week. (5 Points) What are one or more examples? Do they have vascular tissue (xylem and phloem)? Which part of the life cycle/generation is more dominant in structure? (Gametophyte or Sporophyte?) What other characteristics can help you identify this group? (List at least 2 or more) Mosses and liverworts (Bryophytes) Ferns and relatives (Pteridophytes) Conifers (Gymnosperms) Flowering plants (Angiosperms)
Answers
Mosses and liverworts (Bryophytes):
- Example: Mosses (e.g., Sphagnum moss) and liverworts (e.g., Marchantia)
- Vascular tissue: No true vascular tissue (lack xylem and phloem)
- Dominant structure: Gametophyte generation is more dominant in structure
- Other characteristics:
1. Lack of true roots, stems, and leaves; instead, they have rhizoids.
2. Reproduce via spores and require water for fertilization.
Ferns and relatives (Pteridophytes):
- Example: Ferns (e.g., Polypodium) and horsetails (e.g., Equisetum)
- Vascular tissue: Have true vascular tissue (xylem and phloem)
- Dominant structure: Sporophyte generation is more dominant in structure
- Other characteristics:
1. Reproduce via spores produced in structures called sporangia.
2. Exhibit well-developed leaves called fronds and often have underground stems (rhizomes).
Conifers (Gymnosperms):
- Example: Conifers such as pine trees (e.g., Pinus) and spruces (e.g., Picea)
- Vascular tissue: Have true vascular tissue (xylem and phloem)
- Dominant structure: Sporophyte generation is more dominant in structure
- Other characteristics:
1. Produce seeds in cones.
2. Typically have needle-like or scale-like leaves and are often evergreen.
Flowering plants (Angiosperms):
- Example: Flowering plants include roses (e.g., Rosa), sunflowers (e.g., Helianthus), and oak trees (e.g., Quercus)
- Vascular tissue: Have true vascular tissue (xylem and phloem)
- Dominant structure: Sporophyte generation is more dominant in structure
- Other characteristics:
1. Produce flowers for sexual reproduction.
2. Seeds are enclosed within fruits.
3. Have a wide range of forms, from small herbs to large trees.
Please note that the examples provided are just a few representatives of each plant group, and there are many more species within each group.Mosses and liverworts (Bryophytes):
- Example: Mosses (e.g., Sphagnum moss) and liverworts (e.g., Marchantia)
- Vascular tissue: No true vascular tissue (lack xylem and phloem)
- Dominant structure: Gametophyte generation is more dominant in structure
- Other characteristics:
1. Lack of true roots, stems, and leaves; instead, they have rhizoids.
2. Reproduce via spores and require water for fertilization.
Ferns and relatives (Pteridophytes):
- Example: Ferns (e.g., Polypodium) and horsetails (e.g., Equisetum)
- Vascular tissue: Have true vascular tissue (xylem and phloem)
- Dominant structure: Sporophyte generation is more dominant in structure
- Other characteristics:
1. Reproduce via spores produced in structures called sporangia.
2. Exhibit well-developed leaves called fronds and often have underground stems (rhizomes).
Conifers (Gymnosperms):
- Example: Conifers such as pine trees (e.g., Pinus) and spruces (e.g., Picea)
- Vascular tissue: Have true vascular tissue (xylem and phloem)
- Dominant structure: Sporophyte generation is more dominant in structure
- Other characteristics:
1. Produce seeds in cones.
2. Typically have needle-like or scale-like leaves and are often evergreen.
Flowering plants (Angiosperms):
- Example: Flowering plants include roses (e.g., Rosa), sunflowers (e.g., Helianthus), and oak trees (e.g., Quercus)
- Vascular tissue: Have true vascular tissue (xylem and phloem)
- Dominant structure: Sporophyte generation is more dominant in structure
- Other characteristics:
1. Produce flowers for sexual reproduction.
2. Seeds are enclosed within fruits.
3. Have a wide range of forms, from small herbs to large trees.
Please note that the examples provided are just a few representatives of each plant group, and there are many more species within each group.