Answer:B
Explanation:
i did it on study island
24. According to the Punnett square above, what percent of offspring will have a tall phenotype?
Answer:
75 percent
Explanation:
There is only one square with the recessive phenotype tt. This means the rest of the 4 combinations will have the tall phenotype. 4-1 = 3 3/4 = 75 percent.
Answer:
75%
Explanation:
I say 75% because both pea plants have one dominant and one Recessive so by the picture it shows 3/4 having a domminant letter (Big T) and 3/4 in percentage is 75%
please let me know if this is right
How might symbiosis help the stability of an ecosystem? How might it hurt ecosystem stability?
Answer:
Mutualism and commensalism helps in stability while parasitism damage the stability.
Explanation:
Symbiosis helps in the stability of an ecosystem because both the organisms survive as a result of symbiosis. In symbiotic relationship such as mutualism and commensalism, both the organism survived and give benefits to each other while in parasitism, the one organism removed the other from the ecosystem which results in damaging the ecosystem stability.
dna and rna are polymers composed of ______ monomers.
ii) The demand for organic products is ever increasing.
Answer:
True
Explanation:
It is TRUE the demand for organic products is ever increasing.
This is because consumers are constantly looking for foods free from chemically induced substances such as fertilizers or pesticides.
Similarly, people want a greenish environment free from the effect of air pollutants and contamination.
If Alfred Wegener showed you a map like this but did not have any other evidence, would you have believed his theory that the continents had moved? EXPLAIN.
Close geometric correspondence of continental coastlines. Wegener primarily relied on the geomorphological shapes of the opposing continents across the Atlantic as supporting evidence.
What is the theory of Alfred Wegener?The corresponding geometry of the continental shelf beneath the water provides additional support and is even better than that of the coastline that has surfaced.
The existence of rocks with the same geological origin on other continents is another major piece of supporting evidence.
On landmasses that are currently divided by seas, it is feasible to track the stratum boundaries. It is clear from this that these regions were previously part of the same continent.
Therefore, the geomorphological shapes of the opposing continents across the Atlantic as supporting evidence.
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A tomato plant in a greenhouse was found to be
infected with tobacco mosaic virus. A few weeks
later, nearby plants were also found to be infected
with the virus.
Which of the following best describes how the
virus reproduced?
A The virus made its own spores.
B The virus produced seeds in the tomatoes.
C The virus used the host plant's resources and
machinery to reproduce.
D The virus immediately killed the host plant and
was free to reproduce.
Answer:
C. The virus used the host plant's resources and
machinery to reproduce.
Explanation:
which cytoskeletal proteins provide the structural support for microvilli?
The cytoskeletal proteins that provide structural support for microvilli are actin filaments, also known as microfilaments.
What are microvilli?Microvilli are tiny, finger-like projections on the surface of certain cells, particularly those involved in absorption and secretion, such as cells lining the small intestine.
Actin filaments are abundant in the core of microvilli, giving them rigidity and stability. These filaments are composed of actin protein subunits that polymerize to form long, thin fibers, which provide the structural framework for the microvilli.
The actin cytoskeleton plays a crucial role in maintaining the shape and function of microvilli.
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which of the following is not a common characteristic of life?
a. responses made of cells b. made of cells movement c. growth and development d. respond to stimuli
The characteristic of life that is not common is cell movement. Thus, The correct option is b. made of cell movements .
Living things have some common characteristics that make them different from non-living things. The following are the common characteristics of living organisms
They show movement. Made up of cells. They respond to stimuli. Living things use energy. They grow and develop. They show reproduction. They have DNA. The characteristic of life that is not common is movement. This is the correct option out of the given options. Hence, option B (Movement) is not a common characteristic of life.
All living things exhibit growth and development, which refers to changes in form and function over time.
Living organisms are able to respond to stimuli in their environment, whether that be a change in temperature, light, or other factors.
Therefore , All living things are made up of one or more cells, which are the basic structural and functional units of life .Hence correct option is b.
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The flattened sacks of membrane typical of the Golgi apparatus are especially abundant in: ________
The flattened sacks of membrane typical of the Golgi apparatus are especially abundant in cells that are involved in secretion, such as glandular cells and cells of the digestive system.
The flattened sacks of membrane typical of the Golgi apparatus are especially abundant in cells that are involved in secretion, such as glandular cells and cells of the digestive system. These cells have a high demand for the processing, modification, and packaging of proteins and lipids, which are carried out by the Golgi apparatus. The Golgi apparatus plays a key role in the sorting and directing of these molecules to their final destinations, such as the cell membrane or extracellular space, through the use of its stacked and flattened membrane structures.
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In which organism can cell walls be found?
Answer:
Cell walls are structures that surround and protect the cells of some organisms. According to the web page context, cell walls can be found in:
PlantsFungiBacteriaSome protistsCell walls are not found in animals or most protists.
Hormones are chemicals secreted and regulated by the endocrine system.truefalse
True. Hormones are chemical messengers that are produced and secreted by the endocrine system, which is made up of glands throughout the body.
These hormones are transported through the bloodstream to target cells and tissues, where they bind to specific receptors and initiate various physiological responses. The endocrine system plays a crucial role in regulating a wide range of functions in the body, including growth and development, metabolism, mood, and reproduction. The production and release of hormones are tightly regulated by feedback mechanisms to maintain homeostasis in the body. Hormonal imbalances can lead to various disorders and diseases, such as diabetes, thyroid disorders, and hormonal cancers.
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what is the name of the inherited substances on the surface of red blood cells?
Blood group antigens for red blood cells (RBCs) are polymorphic, hereditary, protein or carbohydrate compounds that are found on the extracellular surface of the RBC membrane.
What chemicals do red blood cells have on their surface?The glycolipid and glycoprotein coating on red blood cells, which are lipids and proteins with carbohydrate molecules attached, is one of their distinguishing features. Red blood cells' glycolipid and glycoprotein surfaces in humans.
What is the surface-found inherited protein?The surface of red blood cells contains the hereditary protein known as the Rh factor. Your blood cells contain the Rh protein if you have a positive blood type. Your blood cells do not have the Rh protein if you have a negative blood type.
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Blending theory doesn't work. Traits act more like ______________ than ____________ passing intact through generations. Mendel proposed each somatic cell has _______ copies of the gene controlling flower color. He proposed gametes possess only ______ copy. When gametes unite at fertilization ______ are restored
Blending theory doesn't work. Traits act more like alleles than traits passing intact through generations. Mendel proposed each somatic cell has two copies of the gene controlling flower color. He proposed gametes possess only one copy. When gametes unite at fertilization diploidy is restored.
Mendel's law of segregation is based on the principle that the two copies of a gene segregate from each other during the formation of gametes. This is also known as Mendel's First Law of Genetics. The segregation of genes is due to the separation of homologous chromosomes during the anaphase I of meiosis
Blending theory states that when two different traits are crossed in a pure form, the offspring produced is a blend of the two traits. However, the Blending Theory has a disadvantage. It does not offer any explanation on the reappearance of parental traits. Therefore, it was rejected as a mechanism of inheritance of traits.
Traits pass through generations by the process of inheritance. It is the process by which traits are passed from parents to their offspring. The traits may be either physical, such as hair or eye color, or behavioral, such as the ability to speak a certain language. Genes are responsible for the inheritance of traits from one generation to the next.
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methamphetamine enhances energy and mood by triggering the release of the neurotransmitter
Methamphetamine is a powerful stimulant drug that enhances energy and mood by triggering the release of the neurotransmitter dopamine in the brain.
Dopamine is a chemical messenger that plays a crucial role in regulating motivation, pleasure, and reward. When methamphetamine is consumed, it enters the brain and stimulates the release of dopamine from neurons in the brain's reward pathway. This leads to an intense rush of euphoria and a surge of energy.
Methamphetamine also inhibits the reuptake of dopamine, meaning that it prevents the brain from reabsorbing dopamine back into the neurons that released it. As a result, dopamine levels remain elevated in the brain, leading to prolonged feelings of pleasure and a sense of well-being.
However, methamphetamine abuse can have serious negative consequences, including addiction, psychosis, and physical harm to the body. The long-term use of methamphetamine can damage the brain's dopamine receptors, leading to permanent changes in mood and behavior. Therefore, it is essential to seek professional help to overcome methamphetamine addiction and avoid its harmful effects.
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A student is shown an unlabeled, simplified model of a cell and its subcellular structures. The student is asked to refine the model to show a cell that can meet high energy demands. Which refinement BEST addresses this task?
- Please help i have to submit this by 11:59pm
Answer:
Sorry im late
Explanation:
Im on the same question right now, can you help me out?
Answer:
D) The student should increase the number of structure 3, because it is responsible for generation ATP in the cell.
Explanation:
I just took the test and made a 100.
1. What is the function of the cell membrane? ___________________________________________
2. Explain how the cell membrane maintains homeostasis. ___________________________________
__________________________________________________________________________________
Answer:
Proteins in the cell membrane include cell-surface markers, receptor proteins, enzymes, and transport proteins.
One is to transport nutrients into the cell and also to transport toxic substances out of the cell.
Explanation: I hope this helps
Somebody knows the answer to this
Describe the importance of a hypothesis in scientific inquiry.
Answer:
the basic idea of a hypothesis is that there is no pre-determined outcome. ... A key function in this step in the scientific method is deriving predictions from the hypotheses about the results of future experiments, and then performing those experiments to see whether they support the predictions.
Explanation:
Which of the following equations
represents the right chemical process that
occurs in photosynthesis?
A. Six molecules of oxygen plus six
molecules of water plus light energy
converts six molecules of carbon dioxide
plus sugar.
B. Six molecules of carbon dioxide plus
sugar plus light energy converts six
molecules of carbon and six molecules of
oxygen.
O
C. Six molecules of carbon dioxide plus
six molecules of water plus light energy
converts six molecules of oxygen plus sugar.
O
D. Six molecules of water plus six
molecules of hydrogen plus six molecules of
oxygen converts light energy plus sugar.
The correct equation that represents the chemical process of photosynthesis is option C.
"Six molecules of carbon dioxide plus six molecules of water plus light energy converts to six molecules of oxygen plus sugar."
Photosynthesis is the process by which green plants, algae, and some bacteria convert light energy into chemical energy stored in the form of glucose (sugar). It involves the absorption of light energy by chlorophyll, a pigment found in chloroplasts within plant cells.
In the process of photosynthesis, carbon dioxide (CO2) from the atmosphere is taken in through small pores called stomata in plant leaves. Water (H2O) is obtained from the roots and transported to the leaves. In the presence of light energy, carbon dioxide and water undergo a series of complex chemical reactions within the chloroplasts.
The overall result is the conversion of carbon dioxide and water into glucose (C6H12O6) and oxygen (O2). The release of oxygen is a byproduct, and the glucose produced serves as a source of energy for the plant and other organisms that consume it.
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Is the cell an open or closed system? Explain your
answer using at least one example of a cell
organelle and its function
· In an open system matter and energy can be transferred
· In a closed system only energy can be exchanged
· In an isolated system neither matter nor energy can be exchanged
· The cell has to be an open system because it needs to exchange matter and energy and the only way to do so is through an open system
· As an open system the cell allows nutrients to enter the cell and waste products to exit the cell
· The cell does this through the use of a semi-permeable membrane
· It needs nutrients in the forms of glucose, ions and many other molecules.
· The nutrients can come into the cell through either passive or active transport
· In passive transport the nutrients naturally move from a higher concentration gradient to a concentration gradient.
· During active transport the particle need to move against the concentration gradient. To do this the cell needs energy to transport the materials. The energy comes in the form of ATP.
the organ of nutrition used in fetal development in the most successful mammals is the
The organ of nutrition used in fetal development in the most successful mammals is the placenta. The placenta is an organ that connects the developing fetus to the mother's uterine wall, allowing for the exchange of nutrients, oxygen, and waste products between the mother and the developing fetus. The placenta is crucial for the survival and development of the fetus, and its development and function are closely regulated by a complex set of biological processes.
The parenchyma, chorion, amnion, and umbilical cord make up the placenta, a fetal organ. The fetal structures separate the fetus from the endometrium because they develop from the zygote. The fetal tissues structure from the chorionic sac - which incorporates the amnion, chorion, yolk sac, and allantois.
An organ that grows inside the uterus during pregnancy is the placenta. A developing infant receives oxygen and nutrients from this structure. Additionally, it removes waste from the blood of the baby.
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SOMEONE PLEASE HELP THIS IS DUE TMRW AND I DONT WHAT TO DO!!
Explain how the three types of survivorship curves align with different reproductive
strategies.
Answer:
There are two types of reproductive strategies: r and k
r- strategy is the type of organism that makes a lot of babies. They have limited to no parental care. They also have a high death rate, but matures rapidly. The growth curve would be exponential like X^2.
For example: Think r for RATS because even if you think you killed all the rats, there are constantly making more.
k-strategy is the type of organism that makes a single or few babies. They give a lot of attention/parent care. They mature slowly, and low death rate. The growth curve is sigmoidal. They have limited to how much species live in that environment called the carrying capacity. Carrying capacity = maximum of # of the population within an environment (food, living space, etc).
Explanation:
The 3 basic things needs of all living things
Answer:
food water and shelter I'm not sure but I think so
Answer:
air water and food
Skeleton in mammals
your Question is unclear.
0-7 Why is excess use of fertilizers detrimental for environment?
Q-8 What is a Genetically Modified Crops (GMCs)? Name any one such crop
Answer:
Answer of Question 7
Fertilisers are inorganic chemicals which are not easily degraded. Excess use of fertilisers causes environmental pollution as their residual and unused amounts will become pollutants for air, water and soil.
Answer:
Answer of Question 8
Genetically modified crops are crops produced from organisms that have had specific changes introduced into their DNA using the mmethods of genetic engineering
Example
cotton
what part of the leaf is responsible for absorbing suns energy
Answer:
Explanation:
chlorophyll
Answer: All of the leaf, but only the chemical chlorophyll is able to convert the sunlight it absorbs into sugar.
Explanation:
which are not complementary colors?question 7 options:purple and yellowviolet and indigored and greenorange and blue
The answer is violet and indigo are not complementary colors. Understanding color theory is essential for artists, designers, and anyone who works with colors.
Complementary colors are those that are opposite each other on the color wheel, and they create the highest contrast when used together. The combination of complementary colors creates a dynamic and visually striking effect. Therefore, the colors that are not complementary to each other are those that are not opposite on the color wheel. In the given options, purple and yellow, red and green, and orange and blue are complementary colors because they are opposite to each other on the color wheel. The color violet and indigo are also close to each other on the color wheel, but they are not complementary colors. Therefore, the answer is violet and indigo are not complementary colors. Understanding color theory is essential for artists, designers, and anyone who works with colors. Knowing how to combine colors can help create visual harmony, contrast, and balance in design. By understanding complementary colors, one can create a more dynamic and visually appealing design.
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Name three sources you can use to do background research for this project a chicken coop is the name for the house where chickens live.
Answer:
yer boys name is billy
Explanation:
yessuh
which criterion is not used to describe a mass movement event?
Answer: The angle of the slope
Acid-Base Balance Cases pH = 7.50 CO2 = 47 HCO3- = 32 Is it acidosis, alkalosis or neither? Is the problem respiratory or metabolic in nature? Metabolic in nature. Is there any compensation occurring? Has the body tried to fix the problem?
answer and explanation
this question required us to interpret the atrial blood gas data provided.
from the information provided, this case is a case of alkalosis because the pH reading is 7.50. pH values less that 7.35 indicate acidosis and pH levels greater that 7.45 indicate a case of alkalosis.
this is a metabolic alkalosis because the HCO3 value is greater than 22 and it is fully compensated because of the high CO2