What is a trait, what are genes? How are they related to each other?
Answers
Answer:
A trait is a specific characteristic of an organism. Traits can be determined by genes or the environment, or more commonly by interactions between them, A gene is the basic physical and functional unit of heredity. Genes are made up of DNA.
Explanation:
Related Questions
____ ____ has moved into the stomata because it is a ____ of photosynthesis. ____ gas moves out of the stomata because it is a ____ of photosynthesis.
Answers
Carbon dioxide has moved into the stomata because it is a reactant of photosynthesis. Oxygen gas moves out of the stomata because it is a product of photosynthesis.
Are the agricultural practices same for growing all kinds of millets?
Answers
One of the helpful crops for Indian farmers is millets. One strategy for sustainable agriculture can be found in the cultivation of millets. Tropical and subtropical climates are where millets are primarily grown.
Millet grows well in the sandy, light-colored Goradu soil. Less rain, a moderate temperature, and sufficient sunlight are needed for millet to grow. The lowest temperature needed for its germination is between 8 and 10 °C because it is a heat-loving plant. For appropriate development and a decent crop production during the growth, a mean temperature level of 26–29°C is ideal.They are raised in environments where the soil is relatively unproductive because it is rocky or sandy.
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In mitochondria, an electron transport chain pumps protons from the matrix into the intermembrane space, whereas in chloroplasts, an electron transport chain pumps protons from the ________.
Answers
In mitochondria, an electron transport chain pumps protons from the matrix into the intermembrane space, whereas in chloroplasts, an electron transport chain pumps protons from the stroma into the thylakoid space. This proton gradient is used to generate ATP via chemiosmosis.
The electron transport chain is a series of protein complexes and electron carriers that transfer electrons from electron donors to electron acceptors. The electron transport chain is located in the inner mitochondrial membrane in mitochondria and in the thylakoid membrane in chloroplasts.
In mitochondria, electrons are transferred from NADH to O2 via the electron transport chain. The electron transport chain pumps protons from the matrix into the intermembrane space, creating a proton gradient. This proton gradient is used to generate ATP via chemiosmosis.
In chloroplasts, electrons are transferred from water to NADP+ via the electron transport chain. The electron transport chain pumps protons from the stroma into the thylakoid space, creating a proton gradient.
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why is no force (tension) developed during the latent period of the twitch graph for a single muscle fiber?
Answers
There is no force during the latent period, the motion capacity is being propagated alongside the sarcolemma.
At the molecular level, summation takes place due to the fact the second one stimulus triggers the discharge of extra Ca++ ions, which turn out to be to be had to spark off extra sarcomeres even as the muscle remains contracting from the primary stimulus.
Summation outcomes in more contraction of the motor unit.If a sarcomere is stretched beyond the perfect length (past a hundred and twenty percent), thick and skinny filaments do now no longer absolutely overlap, which leads to much less stress produced. If the muscle is stretched to the factor wherein the thick and skinny filaments do now no longer overlap at all, no cross-bridges may be formed, and no stress is generated.
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Which molecule is most common in the human body?
A. H₂
B. N₂
C. H₂0
D. CO₂
Answers
Answer:
c) H₂0
Explanation:
H₂0 molecule (water) is the most common molecule in the human body. Hence, option (c) is the correct answer.
A diet rich in ________ can help reduce ldl oxidation and thus decrease the risk of cvd and metabolic syndrome.
Answers
A diet rich in antioxidants can help reduce LDL oxidation and decrease the risk of cardiovascular disease (CVD) and metabolic syndrome.
LDL oxidation refers to the process of low-density lipoprotein (LDL) cholesterol particles becoming oxidized or damaged, which can contribute to the development of atherosclerosis and other cardiovascular conditions.
Antioxidants are substances that can neutralize harmful free radicals in the body, which are highly reactive molecules that can cause oxidative stress and damage to cells, including the oxidation of LDL cholesterol. By consuming a diet rich in antioxidants, such as fruits, vegetables, whole grains, and nuts, individuals can help counteract the harmful effects of oxidative stress and reduce the oxidation of LDL cholesterol.
Reducing LDL oxidation is important because oxidized LDL cholesterol is more likely to contribute to the formation of plaque in the arteries, leading to atherosclerosis and an increased risk of CVD. Additionally, oxidative stress and LDL oxidation are associated with the development of metabolic syndrome, which is a cluster of conditions including high blood pressure, high blood sugar, excess body fat around the waist, and abnormal cholesterol levels.
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How is a penguin able to survive in the warm, Galapagos island weather?
Answers
To prevent overheating in the sun, the Galapagos penguin has less body fat and fewer feathers than cold-weather penguins, and has areas of bare skin that they use to radiate heat away from their bodies. ... Penguins can't sweat to lose heat, so the Galapagos penguins pant when they're hot, like dogs.
What would be a symptom of an under-producing lacrimal gland?
excess tears
dry eyes
excess saliva
dry mouth
Answers
Answer:
dry eyes
Explanation:
Answer:
The lacrimal gland produces tears. A symptom of an under-producing lacrimal gland would be dry eyes.
Explanation:
The Lacrimal Gland is either of two-secreting glands situated in the upper outer angle of the orbit.
Symptoms would be:
DrynessIrritationRednessBurning sensationBlurry vision due to lack of tearsSo the answer is dry eyes. Excess tears would indicate an overproducing lacrimal gland. The other options - excess saliva and dry mouth - would not be related to the function of the lacrimal gland.
What chemical agents would be ineffective against this organism?
a. Hydrogen peroxide
b. Phenolic compound c. Glutaraldehyde d. Ethylene oxide gas e. Alcohols at room temperature
Answers
The chemical agents that would be ineffective against the given organism are hydrogen peroxide and alcohol at room temperature. so, options a and e are correct.
Chemical agents are different chemical compounds that are used to destroy or control organisms such as bacteria, fungi, viruses, and insects. They are used in different sectors including healthcare, food preservation, and agriculture among others.
Chemical agents are classified into three groups; physical agents, chemical agents, and radiation agents. Each group of chemical agents targets specific organisms, and thus not all chemical agents are effective against every organism.
The ineffective chemical agents are those that cannot effectively destroy or control organisms. The organisms may be resistant to the chemical agents, or the chemical agents may be incapable of penetrating the organism's structure or coat.
The following are ineffective chemical agents against the given organism; Hydrogen peroxide and Alcohol at room temperature. so, options a and e are correct.
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lesson 1 focus questions there are many considerations that need to be thought through in the process of planning a scientific laboratory investigation. below are a few for you to ponder as you take on the challenge of doing a genetic transformation. since scientific laboratory investigations are designed to get information about a question, our first step might be to formulate a question for this investigation consideration 1: can i genetically transform an organism? which organism? 1. to genetically transform an entire organism, you must insert the new gene into every cell in the organism. which organism is better suited for total genetic transformation one composed of many cells, or one composed of a single cell? 2. scientists often want to know if the genetically transformed organism can pass its new traits on to its offspring and future generations. to get this information, which would be a better candidate for your investigation, an organism in which each new generation develops and reproduces quickly, or one which does this more slowly? 3. safety is another important consideration in choosing an experimental organism. what traits or characteristics should the organism have (or not have) to be sure it will not harm you or the environment?
Answers
To genetically transform an entire organism, one must insert the new gene into every cell in the organism.
To genetically transform an entire organism, one must insert the new gene into every cell in the organism. It is better suited for total genetic transformation to have an organism composed of a single cell.
Scientists often want to know if the genetically transformed organism can pass its new traits on to its offspring and future generations. To get this information, an organism in which each new generation develops and reproduces quickly would be a better candidate for the investigation.
Safety is another important consideration in choosing an experimental organism. To be sure it will not harm you or the environment, the organism should have (or not have) traits or characteristics.
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The American toad mates in the early part of summer, while the Fowler's toad mates later in the season. This is an example of ___ isolation.
Answers
Answer:
temporal isolation
Explanation:
A cross of a red cow (RR) with a white bull (WW) produces all roan offspring (RW). This type of inheritance is known as:
sex-linked
complete dominance
codominance
incomplete dominance
Answers
Answer:
Codominance
Explanation:
Both parents carry a dominant trait, so the offspring will have a coat of main colour, and also some hairs of another colour.
if you analyze the sequences of the two copies of any of the chromosomes shown in the karyotype, there would be slight sequence differences. what could account for the small differences between a few of the homologous chromosomes?
Answers
The small differences between the two copies of homologous chromosomes in a karyotype can be attributed to genetic variations that arise due to mutations, genetic recombination, or other genetic processes.
What are the differences?Mutations are changes in the DNA sequence that can occur spontaneously or due to environmental factors such as exposure to radiation or chemicals. Genetic recombination occurs during meiosis, the process by which sex cells are formed, when homologous chromosomes exchange genetic material, resulting in new combinations of genes on the chromosomes.
Other genetic processes such as gene duplication, deletion, or translocation can also contribute to small differences between hom---ologous chromosomes. These genetic variations can have important implications for an individual's traits, disease susceptibility, and other characteristics.
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Consider two ecosystems that scientists have labeled as ecosystem A and ecosystem B. Scientists have found that both ecosystems are home to a roughly equal number of species. However, ecosystem A is dominated by a small number of species that are very abundant. Ecosystem B, by contrast, has a more even abundance of organisms across its species.
Answers
Ecosystem B has a greater biodiversity than ecosystem A.
What is an ecosystem?The ecosystem is a system that is composed of the living and the non living parts. We know that the ecosystem is self supporting and as such the there is a movement of matter and energy in the ecosystem as we know.
Thus, if we look at the ecosystems A and B, it is clear that there is a greater biodiversity in ecosystem B than ecosystem A. This is because the scientists have found that it has a more even abundance of organisms across its species.
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Many types of plants produce fruit which is eaten by animals. The seeds of these plants are typically undigestible. Which of the following is an advantage for plants having undigestible seeds? It allows seeds to reside in the gut until conditions are appropriate for germination. It ensures that flowers of these plants will be pollinated. It allows the seeds to be dispersed into other areas. It provides a source of nutrients for the germinating seed.
Answers
The advantage for plants having undigestible seeds is that it allows seeds to reside in the gut until conditions are appropriate for germination.
Fruits are a source of nutrition for animals that consume them, and they are also a means of seed distribution for plants that produce them. Many types of plants generate fruit that is consumed by animals; nevertheless, the seeds of such plants are usually indigestible. As a result, the seeds can be dispersed into new areas by animals that eat the fruit.
However, having undigestible seeds provides a distinct benefit to plants: it allows seeds to reside in the gut until conditions are appropriate for germination, which aids in seed growth and germination.
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Natural selection is the process by which a characteristic becomes more or less prevalent in a population, and is the mechanism by which evolution occurs. Which of
the following will mostly likely help natural selection to take place?
A.a lack of natural predators
B.underproduction of offspring
C.mutation in an organism's DNA
D.an abundance of natural resource
Answers
Answer: C. mutation in an organism's DNA
Explanation:
A lack of predators will not pressure a population to adapt or evolve, so no large changes would take place. This is also true for an abundance of natural resources. Underproduction of offspring is something that may affect a population, but this isn't something that will change genotypes or phenotypes of populations in order to adapt to this. Mutations in the DNA of organisms don't always result in a different trait, but when it does, natural selection will act on it; if it's favorable, it will become more prevalent as the new trait passes down onto offspring
Question 2(Multiple Choice Worth 4 points)
(01.05 MC)
The Midwest United States is dominated by grasslands and food crops. Which abiotic factors of temperate grasslands create rich
soils for farmland?
Low precipitation and distinct seasons
O Distinct summers and winters; high rainfall.
O Mild winters, high precipitation, and lack of trees
1
High precipitation and little seasonal change
Answers
The abiotic factors of temperate grasslands that would create rich soils for farmland are distinct summers and winters; high rainfall. That is option B.
What are abiotic factors in an ecosystem?Abiotic factors are those factors that are found in the environment of an ecosystem which are non living and cam influence the activities of organisms inhabiting that ecosystem.
Examples of abiotic factors that affect the temperate grassland include the following:
wind, soil, rocks,water, sun light, air, wind, temperature, lightning, rain, and climate change.
Soil fertility is enhanced in the presence of rainfall and distinct or controlled seasonal changes.
Therefore, the abiotic factors of temperate grasslands that would create rich
soils for farmland are distinct summers and winters; high rainfall.
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Which instrument would be best for measuring mass? *
O Scale that measures grams
O A Flask
O Scale that measures pounds
O A graduated Cylinder
O Measuring tape
Answers
Answer:
Scale that measure pounds
Answer:
Scale that measures grams.
Explanation:
Human cells break down glucose to release the energy stored in its bonds. Which of these statements is false?
A. Large chains of glucose molecules can be broken apart to form other molecules.
B. Glucose can be assembled into larger molecules.
C. The atoms of glucose molecules can be combined with other elements to form different molecules.
D. Maltose is not useable if it is broken down further.
Answers
Maltose is useable if it is broken down further cause it provides energy or stored as glycogen. So the correct answer is option 'D'
What is Maltose?
Maltose which can be described as maltobiose or malt sugar, is an intermediate sugar form by the action of amylase catalyzed hydrolysis of starch which is a disaccharide, specially formed from two units of glucose bond with an α(1→4) bond. which when broken down further provides energy or stored as glycogen.
What is glycose?
Glycose can be said to be the simplest type of carbohydrate (carb), and a group of carbohydrates known as simple sugars (monosaccharides) which is the main type of sugar in the blood and is one of the major sources of energy for the body's cells.
What is glycose made up of?
Glucose is majorly made up of three elements which are
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Parts that may have dimensional change due to thin wall characteristics are referred to as _____ parts. A. translational B. nonrigidC. nominal D. simulated.
Answers
Parts that may have dimensional change due to thin wall characteristics are referred to as nonrigid parts.
To ensure that the final product is of the correct quality, several elements must be taken into account while designing and manufacturing parts with thin walls. Dimensional change, or any modifications to the part's size, form, or general geometry as a result of the thin wall features, is one of the major problems that may develop.
This dimensional shift may occasionally be only slight and can be taken into consideration through careful design and fabrication procedures. The performance or functionality of the part may be affected in other circumstances, especially in applications where strict tolerances are necessary.
Parts that may experience dimensional shift as a result of thin wall properties are frequently referred to as nonrigid parts to help alleviate this problem. This word recognizes that these parts are more flexible and variable than other, more rigid parts, and it emphasizes the importance of paying close attention to details throughout the design and manufacturing processes.
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Question 3 of 10
Which event is likely to decrease the genetic variation in a population?
A. Homologous chromosome pairs lining up randomly before being
pulled apart in meiosis I
B. Failure of non-sister chromatids to cross over during meiosis
C. Independent assortment of chromosomes during metaphase I
D. Zygotes receiving a unique set of chromosomes from each
gamete
Answers
Genetic variety in a population is expected to decrease if non-sister chromatids fail to cross across during meiosis.
What causes a population's variation to decline?Genetic variety is produced over time by populations and can be specifically or stochastically suppressed by selection or genetic bottlenecks. Following a bottleneck, a small number of randomly chosen people form a founder population, which causes genetic drift.
What causes genetic variety to rise or decrease?Genetic variation can be increased by human mutations and alleles being created as a result of gene duplication, recombination, or other events. A population can generate new genetic variation within a few generations, hence a population with high rates of reproduction would likely have a high level of genetic diversity.
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The photo shows muscle tissue.
What is the function of muscle tissue?
A. Can you send signals to control the body
B. To Cover the body do you protect other cells
C. Two contracts to cause movement in the body
D. To transport materials and defend the body
Answers
Answer:
i think its c
Explanation:
because thats the mane function off muscle tissues and they dont really do any other things
The function of muscle cells is to contract to cause movement in the body. So the correct option is C.
What is muscle tissue?
Muscle tissue is composed of muscle cells. These cells have the unique ability to ability to contract and relax which results in movement of the parts of our body.
The muscle is compact with muscle cells. It is well supplied with blood vessels. These are long and slender and thus they are sometimes also referred to as muscle fibres.
These cells are arranged usually in the form of bundles or layers. They are surrounded by connective tissue. There are two contractile proteins present in the muscle tissue called Actin and myosin.
They are categorized as skeletal muscle tissue, smooth muscle tissue, and cardiac muscle tissue.
Cylindrical, multinucleated, striated cells which are under voluntary control are called skeletal muscle cells. Spindle-shaped cells with a single, centrally located nucleus and lack striations are smooth muscles. They are involuntary muscles. Cardiac muscles have branching fibres, uninucleated cells with striations, and intercalated disks. It is also involuntary.
Therefore the correct option is C.
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IF SOMETHING IN THE ECOCOLUMN DIED IT WAS CONSUMED
BY?
Answers
If something in the ecocolumn died, it was likely consumed by decomposers.
Decomposers are organisms, such as bacteria, fungi, and detritivores, that break down dead organic material and recycle nutrients back into the ecosystem.
They play a crucial role in the decomposition process, breaking down organic matter into simpler compounds that can be used by other organisms.
Detritivores are larger organisms, such as earthworms, millipedes, and some insects, that feed on dead organic material. They physically break down the dead organism into smaller pieces, increasing the surface area available for decomposition by bacteria and fungi.
By feeding on the dead material, decomposers help to break it down and release nutrients, allowing them to be cycled back into the ecosystem and utilized by other living organisms.
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the human hand and feet have similar types and number of bones however hands and feet are very different in their appearance. What physical differences do you notice between the hands and the feet?
Answers
The human hand and feet are vital appendages that support mobility. These appendages have similar types and numbers of bones but display significant physical differences.The physical differences between hands and feet are largely dependent on their functions. Below are the physical differences that one can observe between hands and feet:
1. Size and Shape The hands are relatively smaller than the feet. They have a square or rectangular shape with short, stubby fingers. In contrast, the feet are larger and broader with longer toes. The toes have different shapes and sizes to enable better weight distribution and balance.2. Joint Movement The joints of the feet are mainly used for weight distribution, and the bones are primarily designed for supporting the weight of the body. The hand, on the other hand, has an extensive range of motion. The bones of the hand are designed to facilitate flexibility and movement.
3. Skin The skin on the hands is relatively thicker, while the skin on the feet is thin and tender. The hand's skin can withstand more wear and tear due to the numerous activities carried out by the hand. The skin on the feet is more susceptible to tearing or blistering when exposed to excessive pressure, heat, or cold.The physical differences between hands and feet are evident and can be observed when comparing the two.
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The connective tissue that makes up bone is called ______ tissue.
Osseous
Answers
Answer:
Explain how this extra bone can disappear over time. This extra band of bone probably disappears over time due to the action of osteoclasts. Osteoclasts are responsible for breaking down bone and releasing the components of the bone (calcium and phosphorus) into the bloodstream.Explain how this extra bone can disappear over time. This extra band of bone probably disappears over time due to the action of osteoclasts. Osteoclasts are responsible for breaking down bone and releasing the components of the bone (calcium and phosphorus) into the bloodstream.Explain how this extra bone can disappear over time. This extra band of bone probably disappears over time due to the action of osteoclasts. Osteoclasts are responsible for breaking down bone and releasing the components of the bone (calcium and phosphorus) into the bloodstream.Explain how this extra bone can disappear over time. This extra band of bone probably disappears over time due to the action of osteoclasts. Osteoclasts are responsible for breaking down bone and releasing the components of the bone (calcium and phosphorus) into the bloodstream.Explain how this extra bone can disappear over time. This extra band of bone probably disappears over time due to the action of osteoclasts. Osteoclasts are responsible for breaking down bone and releasing the components of the bone (calcium and phosphorus) into the bloodstream.Explain how this extra bone can disappear over time. This extra band of bone probably disappears over time due to the action of osteoclasts. Osteoclasts are responsible for breaking down bone and releasing the components of the bone (calcium and phosphorus) into the bloodstream.Explain how this extra bone can disappear over time. This extra band of bone probably disappears over time due to the action of osteoclasts. Osteoclasts are responsible for breaking down bone and releasing the components of the bone (calcium and phosphorus) into the bloodstream.Explain how this extra bone can disappear over time. This extra band of bone probably disappears over time due to the action of osteoclasts. Osteoclasts are responsible for breaking down bone and releasing the components of the bone (calcium and phosphorus) into the bloodstream.Explain how this extra bone can disappear over time. This extra band of bone probably disappears over time due to the action of osteoclasts. Osteoclasts are responsible for breaking down bone and releasing the components of the bone (calcium and phosphorus) into the bloodstream.Explain how this extra bone can disappear over time. This extra band of bone probably disappears over time due to the action of osteoclasts. Osteoclasts are responsible for breaking down bone and releasing the components of the bone (calcium and phosphorus) into the bloodstream.Explain how this extra bone can disappear over time. This extra band of bone probably disappears over time due to the action of osteoclasts. Osteoclasts are responsible for breaking down bone and releasing the components of the bone (calcium and phosphorus) into the bloodstream.Explain how this extra bone can disappear over time. This extra band of bone probably disappears over time due to the action of osteoclasts. Osteoclasts are responsible for breaking down bone and releasing the components of the bone (calcium and phosphorus) into the bloodstream.Explain how this extra bone can disappear over time. This extra band of bone probably disappears over time due to the action of osteoclasts. Osteoclasts are responsible for breaking down bone and releasing the components of the bone (calcium and phosphorus) into the bloodstream.vExplain how this extra bone can disappear over time. This extra band of bone probably disappears over time due to the action of osteoclasts. Osteoclasts are responsible for breaking down bone and releasing the components of the bone (calcium and phosphorus) into the bloodstream.
Explanation:
Which of the following is a feature of the "tube-within-a-tube" body plan in most animal phyla?A) The outer tube consists of a hard exoskeleton.B) The outer tube consists of digestive organs.C) The mouth and anus form the ends of the inner tube.D) The two "tubes" are separated by tissue that comes from embryonic endoderm.
Answers
Answer: C-the mouth and anus form the ends of the inner tube.
Explanation:
A population that is isolated in a remote environment is still able to experience genetic variation. How could genetic variation that contribute
A
A mutation in a liver cell produces liver cancer.
C
B
Lateral gene transfer occurs that produces an organism that is less resistant to drought.
O C. A mutation in an egg cell causes a change in DNA that produces an organism that is more sensitive to sunlight.
D. A mistake in DNA replication before meiosis produces an organism that is better able to outrun predators.ll
Answers
What do you think the planet earth will look like in 50 years?
Answers
Answer:
I persoonally think that it will be one big trash can
Explanation:
Its really sad to say but i think it will be covered in trash. PLEASE STOP LITTERING!!!
Answer:
I think that it could really depend on how we continue treating the earth. But if you want to know my opinion, I’m going to just say that I think the earth could have electric cars/ almost everyone would have one, and that we will most likely have virtual things for pretty much everything. But like always we still will need food.
Explanation:
this is what I think the world could look like in fifty years from now.
340 million square meters of forest is how many hectares?
one hectare = 10000 square miles
use dimensional analysis
PLS HELP LOL
Answers
Rephrase the process of diffusion in your own words, and give an
example.
Answers
Answer:
Diffusion is defined as a spontaneous net movement of particles down their concentration gradient or in other words from an area with greater concentration to the area with lower concentration without using any energy (e.g. diffusion of oxygen and carbon dioxide across the alveolar-capillary membrane of the human lungs ...