Answer:
calcium
Explanation:
When an action potential arrives at an axon terminal, it causes the opening of calcium channels, which triggers fusion of neurotransmitter vesicles with the cell membrane.
A number of mechanisms operate to maintain genetic diversity in a population. Why is such diversity favored?.
Answer:
Genetic diversity may better adapt a population to inevitable changes in the environment.
Which molecule performs the primary signal transduction step in cell signaling?.
Answer: G-protein molecules associated with the adrenergic receptor.
Explanation:When the signaling molecule binds the receptor it changes the receptor protein in some way.
A student has twenty identical young plants how does the amount of water given to these plants each day effect how tall the plant will grow
Answer:
The amount of water given to the plants depends on the effect of how tall the plant can overall grow. For instance, if all twenty identical plants are being given the same amount of water, then they will grow all at equal rates. However, if there is not equal amount/consistency with the amount of water the plants receive, then this factor may contribute to an uneven growth pattern between all twenty plants. However, other factors (such as location, sunlight, etc.) may also contribute to a plant's growth.
what kind of electrical charge is found on a hydrogen atom of a polar water molecule
Answer:
A negative charge exists because of the electronegativity of oxygen. A polar water molecule is made up of hydrogen and oxygen. Due to its atomic structure, there is an unequal distribution of charges and thus oxygen gets a more negative charge while hydrogen gets a positive charge.
Explanation:
The ____ is a cool, northern forest biome dominated by conifers
What is the order of urine-collecting structures found within the kidney?.
The urine-collecting structures found within the kidney are:
Renal pyramidsMinor calyxMajor calyxRenal pelvisUreterWhat are Urine-collecting structures?The urinary system includes the systems that collect and carry urine from the kidneys to the bladder for removal from the body. Renal pyramid, minor and major calyces, renal pelvis and ureter are some of these structures.
1. The renal medulla contains triangular-shaped structures called renal pyramids, which are filled with urine-collecting tubules.
2. Minor calyx: These are small, cup-shaped organs that collect urine from the collecting ducts of the pyramids of the kidneys.
3. Major calyx: These are large, cup-like structures that form when several smaller calyces come together. They receive urine from the corpus luteum as they empty into the renal pelvis.
4. The ureter, which carries urine to the bladder, receives urine from the main calyces, a funnel-shaped structure in the renal pelvis.
5. A muscular tube known as the ureter carries urine from the renal pelvis to the bladder.
Therefore, the urine-collecting structures found within the kidney are:
Renal pyramidsMinor calyxMajor calyxRenal pelvisUreterLearn more about Urine-collecting structures, here:
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Speciation that takes place when a physical barrier subdivides a large population is called ____ speciation.
Answer:
Your answer is allopatric speciation.
Explanation:
Allopatric speciation is speciation that occurs when biological populations of the same species become isolated due to geographical changes such as mountain building or social changes such as emigration. Hope this helped :)
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What is the effect of the inheritance of one trait on the inheritance of a second trait?
when the genes are independent, then one gene has no effect on the others inheritance, if they are linked, they are likely to be inherited together, so when you get one, you get the other as well. i hope this helped n srry if im late
Will give brainliest!!!!! A person has developed a condition where his heart valves are damaged. Use complete sentences to explain the effects of such a condition on the circulatory system.
Q 1. Choose the best answer. What do the projections on the outside of a virus allow?
Answer:
C
Explanation:
i did this in my science
1. When I look at one of the organisms in the microscope, I notice a tiny nucleus
inside the cell. This organism should be classified as a...
a. Eubacteria
c. Could be either
b. Protist
Match the blood cells with their associations: ("choose" are drop down menu)
each drop down menu contain(erythrocytes,leukocytes,platelets)
disease protection
Choose...
carries CO 2
Choose...
devoid of nucleus
Choose...
phagocytosis
Choose...
thromboplastin
Choose...
lymph glands
Choose...
fibrinogen
Choose...
hemoglobin
Choose...
In this question, we combine blood cells with their associations which are erythrocytes, leukocytes, platelets.
Blood cellsdisease protection - leukocytescarries CO 2 - erythrocytesdevoid of nucleus - erythrocytesphagocytosis - leukocytesthromboplastin - plateletslymph glands - leukocytesfibrinogen - plateletshemoglobin - erythrocytesErythr
Also called red or aromatic blood cells, have great flexibility, shape and form of a biconite disk, that is, they have thinner centers and thicker edges.
LeukocytesAre also called white blood cells as cells that act in defense of our body, working to fight allergies and infections.
PlateletsAre cells that are made in the bone marrow and circulate in the bloodstream and help the blood to clot.
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9. In addition to being passionate, what would be another essential quality to be a good tornado hunter?
Answer:
Bravery
Explanation:
You are going towards something that can/will kill you so you have to be brave. :)
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The taiga biome is found on more continents than the alpine biome. please select the best answer from the choices provided t f
Answer:
The answer is False
Explanation:
Answer:
The answer is false for edge 2022
Explanation:
Because i took the test
The following are all functions wetlands perform except _____.
a) buffer shorelines against erosion
b) trap and filter sediments, nutrients, and pollutants
c) provide mud for bricks
d) turn into anthracite
e) provide habitats for many threatened and endangered species
The above described are all types of functions that wetlands perform except turn into anthracite (Option d).
What are wetlands?Wetlands are specific ecosystems characterized to have water bodies and high humidity levels.
In wetlands, these water bodies are generally spread or appear at least during some period of the calendar year.
Wetland ecosystems are a fundamental source of biodiversity and therefore should be conserved properly.
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Answer: D.
Explanation:
Just did the assignment and got it right
Are human actions affecting the natural
selection of blackcaps? If so, how?
Answer:
Migratory birds are particularly susceptible to adverse effects of human activities.
Explanation:
Because the global networks of ecosystems on which birds rely are undergoing rapid change.
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We find that the ecology of blackcaps in a recently colonized high-latitude wintering area is shaped by human activity, including supplemental bird feeding, and mediated by environmental conditions.
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Answer:
Solar Power
Explanation:
It can be used over and over again because it comes from the sun.
Hope this Helps
Answer:
A. Solar power
Explanation:
Types of nonrenewable energy include coal, natural gas, oil, and petroleum (diesel fuel, propane, gasoline). These types of nonrenewable energy are considered fossil fuels, meaning that they were formed from the remains of animals and plants that lived millions of years ago.
The sun is a source of renewable energy. This energy source naturally renews, or replenishes itself.
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Glycolysis results in the production of two ________ molecules from a single molecule of glucose. In the absence of ________, the end product of glycolysis is ________.
Glycolysis results in the production of two pyruvate molecules from a single molecule of glucose. In the absence of oxygen, the end product of glycolysis is lactate.
What is glycolysis?Glycolysis is a biological process that involves the cellular degradation of the simple sugar glucose to yield pyruvate, and ATP as an energy source.
Glycolysis occurs in the cytoplasm of living cells and results in the formation of two ATP molecules.
Glycolysis in the absence of oxygen results in a fermentation process that produces lactate.
Therefore, glycolysis results in the production of two pyruvate molecules from a single molecule of glucose. In the absence of oxygen, the end product of glycolysis is lactate.
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Which type of cell transport occurs
when a cell's membrane folds inward
to bring materials into the cell?
A. Endocytosis
8. Pinocytosis
C. Exocytosis
D. Phagocylosis
AC
Answer:
the correct answer is B. Phagocylosis
Explanation:
Pinocytosis, or cellular drinking
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Approximately one third of our medicines come from chemicals produced by tropical plants. Why do these plants produce most of these chemicals
These plants produce most of these chemicals as they need to adapt to survive in osty environments.
What is the relationship between plants and the production of medicines?The transformation of a plant into a medicine aims to preserve the chemical and pharmacological integrity of the plant drug in order to guarantee the constancy of its biological and/or pharmacological action and the safety of its use, in addition to valuing its therapeutic potential.
With this information, we can conclude that these plants produce most of these chemicals as they need to adapt to survive in osty environments.
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Which type of cell division creates diploid cells?.
2. Blood is carried away from the heart by ____________________________, and it is carried back to the heart by ____________________________.
How does most carbon enter living things?
Answer:
Through the process of photosynthesis, carbon dioxide is pulled from the air to produce food made from carbon for plant growth. Carbon moves from plants to animals. Through food chains, the carbon that is in plants moves to the animals that eat them. Animals that eat other animals get the carbon from their food too.
Explanation:
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What maintains intestinal health
Answer:
Eat a high-fiber diet.
Explanation:
One of the best ways to improve your digestive health is by maintaining a diet that is high in fiber and rich in fruits, vegetables, legumes and whole grains. This keeps the normal process of digestion running smoothly, helping to prevent constipation and maintain a healthy weight.
It can be inferred from the graph above that the decreasing water levels in Walker Lake are caused by the creation of reservoirs. Which of the following is evidence from the graph that shows the effect decreased water levels have had on the lake?
A:The dissolved solid concentration is increasing.
B:The graph does not show evidence of any effect decreased water levels are having on the lake.
C:The water temperature is rising.
D:The fish population is decreasing.
The dissolved solid concentration increasing is the evidence which shows the effect decreased water levels have had on the lake.
What is Concentration?
This is defined as the ratio of the solute to the solvent or the total solution. A lake comprises of a solution with different solutes and solvent which is water.
When the water levels in the lake decreases, the solid concentration increases which is why option A was chosen.
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Which of the following statements are true of mitochondrial proteins that are synthesized in the cytosol?
a. Proteins usually have a signal sequence at their C-terminus.
b. Proteins cross both the inner and outer mitochondrial membranes as they are imported.
c. Proteins are transported across the mitochondrial membranes while being synthesized.
d. Chaperone proteins help draw the proteins inside the mitochondrion.
e. Proteins are unfolded as they are transported into the organelle.
f. Protein transport into mitochondria is powered in part by ATP hydrolysis.
The following are statements that are true about mitochondrial protein synthesized in the cystol.
Proteins cross both the inner and outer mitochondrial membranes as they are importedChaperone proteins help draw the proteins inside the mitochondrion.Protein transport into mitochondria is powered in part by ATP hydrolysis.Mitochondrial protein.Mitochondrial is an organelles found in organisms which is refer to as the power house and help to produce energy for cells, for metabolic activities, cell proliferation and so on.
Mitochondrial proteins are normally encoded by nuclear genes and they are produced on cytosolic ribosomes and imported into mitochondria.
Mitochondrial Protein help to Import protein and Process the protein in Heart Disease. imported into mitochondria.
Therefore, The following are statements that are true about mitochondrial protein synthesized in the cystol.
Proteins cross both the inner and outer mitochondrial membranes as they are importedChaperone proteins help draw the proteins inside the mitochondrion.Protein transport into mitochondria is powered in part by ATP hydrolysis.Learn more about mitochondrial protein here.
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A patient has a history of poor nutrition. he has skin rashes, bleeding gums, and a cut that hasn’t healed in a long time. what vitamin deficiency most likely caused these symptoms?
Answer:
vitaminc
Explanation:
1.A patient has a history of poor nutrition. he has skin rashes, bleeding gums, and a cut that hasn’t healed in a long time. what vitamin deficiency most likely caused these symptoms?
2.The less amount of vitamins in the human body results in the deficiency caused by the major of the known vitamins like A,B,C,D and E.
Which organelle contains chlorophyll and is the location for photosynthesis?
ribosome
chloroplast
nucleus
endoplasmic reticulum
Answer:
Choloroplast
Explanation:
The choloroplast hosts the enzymatic machinery that carries out photosynthesis. These proteins are embedded in the thylakoid membranes of the chloroplast. Of these proteins PSII and PSI contain chlorophyll molecules.
Select the following statement(s) about how the organisms in the food chain store carbon that is(are
NOT true.
a. The algae use carbon dioxide to create glucose to be stored for later use.
b.
The crab ingests carbon from the snail and stores the carbon until it used for energy
c. The fish ingests carbon dioxide from the hydrosphere and stores the carbon for later use.
d. The crab expels carbon dioxide into the hydrosphere when glucose is converted into ATP.
Explain how the total mass of carbon is affected as it is curiod thi
The statements on how organisms in a food chain store food that is Not true are :
The Fish ingests carbon dioxide from the hydrosphere and stores the carbon for later use ( C ) The crab expels carbon dioxide into the hydrophere when glucose is converted into ATP ( D ) Organisms in the food chainOrganisms in the food chain contribute greatly to the flow of carbon in the atmosphere by consuming, storing and expelling carbon in variuos form to help regulate the flow of carbon in the carbon cycle. Algae use carbon dioxide during photosynthesis to produce glucose which is stored for use. also as the crab ingests snails and other marine organisms it stores the carbon for use as a source of energy.
Hence we can conclude that the statements that are not true are as listed above.
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DNA sequences that cap chromosomes, known as ______, become shorter and shorter each time a cell divides; and after about 70 or 80 such divisions, they are dramatically reduced, and the cell can no longer reproduce.
Telomere is the DNA sequence that cap chromosomes and it become shorter each time a cell divides.
What are Telomeres?Telomeres are DNA sequence that cap chromosomes and are made up repetitive sequences of non-coding DNA which help to protect the chromosome from been damaged. Anytime, a cell divides, the telomeres become shorter and continue to become so short that the cell can no longer divide.
Therefore, DNA sequence that cap chromosomes is called Telomere.
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