Answer:
C. Kinesin hydrolyzes ATP.
Explanation:
The central force-generating element that the two types of motor proteins (Kinesin and Myosin) have in common includes the site of ATP binding and the machinery necessary to translate ATP hydrolysis into an allosteric conformational change. Kinesin must use the energy derived from ATP binding and hydrolysis to force a large movement in part of the protein molecule. When kinesin forms a rigor-like tight association with the head location of the microtubule, the ATP is bound to the kinesin, and it is hydrolysis of ATP that promotes release of the motor from its track. Thus, myosins can typically drive filament sliding much more rapidly than kinesins, even though they hydrolyze ATP at comparable rates and take molecular steps of comparable length.
Option c is correct. Kinesin is a motor protein that moves along microtubules in your cells, converting ATP into mechanical work.
Explanation:The correct answer to your question is c. Kinesin hydrolyzes ATP. Kinesin is a type of motor protein that converts chemical energy stored in ATP (adenosine triphosphate) into mechanical work. The result is movement along the microtubules in your cells.
Kinesin is not associated with intermediate filaments, so option a is incorrect. It's also important to note that kinesin primarily moves towards the plus end of microtubules, which is the opposite of what option b suggests. As for option d, this is also incorrect because kinesin doesn’t act on actin filaments, instead, it moves along the microtubules.
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How does polygenic inheritance differ from mendelian inheritance
Answer:
Mainly, the number of genes that control traits.
Explanation:
Polygenic inheritance does not follow Mendel's law of dominance. According to Mendel the dominant trait will mask the recessive trait however, this is not always the case. Polygenic inheritance states that traits are controlled by two or more genes and is also dependent on the environment.
Let's take skin color for example. A fair-skinned person will have a child with a dark-skinned person.
Mendelian inheritance would assume that the offspring would either be fair or dark only.
Polygenic inheritance would assume that the offspring would be either fair, dark, or a tone in between, depending on the environment they are in as well.
Hope you understood it.
Control of thirst response due to increased plasma osmolarity by a negative feedback loop rank from the first to the last steps to describe the correct order of events to maintain homeostasis.
Thirst response is controlled by the master of all endocrine gland i.e. the hypothalamus. The increase in the osmolarity of the cells causes the hypothalamus to trigger the thirst response. This is subsidized by fluid intake which helps in operating the feedback loop.
Further Explanation:
Feedback mechanism is the process by which the body tries to maintain a homeostasis. They are of two types,
a. Positive Feedback Loop
b. Negative Feedback Loop
Positive feedback loop is the self-regulating process in which the increase in input decreases the output. A sufficient decrease in the output leads to decrease in input.
Negative feedback loop is a self-regulating cycle in which the increase in input increases the output. The increase in output regulates the level of input.
Hypothalamus is the master endocrine gland that plays a vital role in maintaining homeostasis that is a stable condition inside the body.
The control of thirst response is carried out in the following manner,
i. The increase in osmoregularity of the cells.
ii. This increase is detected by the control center in the brain i.e. hypothalamus.
iii. Hypothalamus triggers the thirst response.
iv. The triggering helps in increasing the fluid intake.
v. The fluid intake is detected and the osmoregularity comes back to normal.
vi. The hypothalamus detects the change in osmoregularity.
vii. The change detected leads to decrease in thirst response.
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Answer Details:
Grade: College biology
Subject: Biology
Chapter: Homeostasis
Keywords:
Homeostasis, hypothalamus, fluid, Fluid intake, Brain, master endocrine gland, feedback mechanism, negative feedback loop, feedback loop, endocrine gland.
Final answer:
The control of thirst response due to increased plasma osmolarity is maintained by a negative feedback loop involving osmoreceptors signaling the hypothalamus to induce thirst and release ADH, leading to increased water reabsorption by the kidneys until homeostasis is restored. The correct order of events is: detection of increased plasma osmolarity, activation of osmoreceptors in the hypothalamus, thirst response and drinking water, release of antidiuretic hormone to recover water from urine, and decrease in watery output from salivary glands.
Explanation:
The body detects an increase in plasma osmolarity due to dehydration.The osmoreceptors in the thirst center of the hypothalamus monitor the concentration of solutes in the blood.If the blood osmolality increases above its ideal value, the hypothalamus signals thirst and the person responds by drinking water.The hypothalamus also releases antidiuretic hormone (ADH) through the posterior pituitary gland, which signals the kidneys to recover water from urine, diluting the blood plasma.To conserve water, the hypothalamus sends signals to the salivary glands, resulting in a decrease in watery output and an increase in stickier mucus output, causing a dry mouth and the sensation of thirst.This process efficiently regulates water intake and urine production to ensure that the body's plasma osmolarity remains within the optimal range.
Ants carry dead ants out of an anthill and dump them on a trash pile. To study this behavior, a scientist paints a live ant with a chemical from dead ants. The scientist observes that the other ants repeatedly carry the live ant, which is kicking and struggling, to the trash pile, until the chemical wears off. What do these observations suggest?A. The chemical is a stimulus that triggers an innate behavior.B. The process of carrying a live ant to the trash pile is an example of problem solving.C. The ants have become imprinted on the chemical.D. The ants have learned through the experiment to associate the chemical with dead ants.
I think the answer is B but if not it’s A
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Which of the following is defined as the location and density of a population in an area?
Composition
Distribution
Dynamics
Migration
Answer:B or C
Explanation:
Examine the equation.
2H2(g) + O2(g) → H2O(l)
Match the equation's components to the appropriate description.
(g) -- state of matter
O2 -- reactant
→ -- yields
H2O -- product
The chemical equation 2H2(g) + O2(g) → H2O(l) includes components representing states of matter, reactants, the yield symbol, and products. (g) indicates gas, O2 is a reactant, → means 'yields', and H2O is the product of the reaction.
Explanation:In the provided chemical equation, 2H2(g) + O2(g) → H2O(l), the components can be matched with their appropriate descriptions as follows:
(g) represents the state of matter, in this case, gas.O2 is one of the reactants, which are the substances that start a reaction.The arrow symbol, →, stands for 'yields', indicating the result of the reaction.Finally, H2O is the product, which is the substance formed as the result of a chemical reaction.Learn more about Chemical Equation here:https://brainly.com/question/28294176
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The chemical equation represents the reaction of hydrogen (H2) and oxygen (O2) gases to form water (H2O), with gaseous reactants and a liquid product. It demonstrates the law of conservation of matter being satisfied, showing the balanced nature of the reaction where two molecules of water are produced from the reaction of two molecules of hydrogen with one molecule of oxygen.
In this equation, 2H2(g) and O2(g) are the reactants, where (g) indicates that they are in the gas state. The arrow (→) signifies 'yields' or the direction of the reaction. The H2O(l) represents the product of this reaction, where (l) indicates that water is in the liquid state. The equation also follows the law of conservation of matter as it is correctly balanced: there are four hydrogen atoms and two oxygen atoms on each side of the equation, consistent with the coefficients shown. It is crucial to recognize the importance of balancing chemical equations, as this reflects the conservation of mass and gives an accurate depiction of the quantities involved in the reaction. The coefficients in front of the chemical formulas, like the 2 in front of H2O, indicate how many molecules of each substance are involved. Thus, the balanced equation 2H2(g) + O2(g) → 2H2O(l) shows that two molecules of hydrogen gas react with one molecule of oxygen gas to yield two molecules of liquid water.
"which drug name is correctly paired with its general category of drugs?"
a. morphine—hallucinogen
b. morphine—stimulant
c. valium—benzodiazepine
d. valium—barbiturate
C. Valium is a benzodiazepine
Answer:
The correct answer is option c. valium—benzodiazepine.
Explanation:
Valium is categorized into benzodiazepines, and contains diazepam as the active substance.
The effects of this drug are tranquilizers, sedatives, muscle relaxants and anticonvulsants, and is consumed by those patients who present with symptoms of anxiety, insomnia or some type of psychoneurotic disorder.
In the category of benzodiazepines are all those drugs that act directly on the central nervous system.
It is also a drug widely used to treat those people who suffer from anxiety for having consumed an excess of hallucinogens.
12. Your classmate is trying to determine the rate of photosynthesis for a fern plant growing in his or her backyard. Your classmate wants to set it up in a way for it to have a high photosynthesis rate. Which of the following setups has the highest photosynthesis rate? A. Low intensity of light, medium levels of carbon dioxide, low temperature level B. High intensity of light, low levels of carbon dioxide, high temperature level C. High intensity of light, high levels of carbon dioxide, moderate temperature level D. Medium intensity of light, low levels of carbon dioxide, extremely high temperature level
Answer:
C. High intensity of light, high levels of carbon dioxide, moderate temperature level
Explanation:
Among all the choices, letter C is the most appropriate combination.
The rate of photosynthesis is controlled by all three factors:
1. amount of light energy
2. concentration of carbon dioxide
3. temperature
4. water
When you think about the Law of limiting factors, the physiological processes the rate at which it occurs will depend on the shortest supply. In terms of photosynthesis, light energy, water and carbon dioxide are needed for the process to occur. Any increase in the materials needed would increase the rate of the process. Temperature is needed because enzymes that catalyze reactions need to be at optimal levels for them to work properly. Usually increasing temperature increases the rate of reaction.
Answer:
high intensity of light
What type of blood capillary located in this sublayer is uniquely suited for absorption of nutrient material?
Answer:
Fenestrated capillaries
Explanation:
Fenestrated capillaries are found in some tissues where there is extensive molecular exchange with the blood such as the small intestine, endocrine glands and the kidney.
in the nineteenth century, what was the primary concern of marine scientists ?
a. documenting species
b. sustainable agriculture
c. noting the role of currents
d. taking over unoccupied territory to study it
Answer:
a. Documenting species
Explanation:
first half of the century, time in which primarly scientists the discovery of the depth and size of the ocean.
If you could "get inside the head" of a person experiencing auditory hallucinations, you would most likely find that:
Answer:
The person actually produces nerve signals of sound in his brain
An ecologist studied the same species of deer during the summer and the winter. She noticed that during the summer, when there was plenty of food, the deer were energetic and playful. However, during winter when food was scarce, the deer moved more slowly and did not run unless they needed to escape a predator.
Answer:
The plants would not grow so they have no food
Explanation:
Its cold
Answer: To study island, it would be: food is the fuel that gives animals energy.
The cleft chin trait follows a dominant-recessive inheritance pattern with cleft chin being the dominant trait. john is heterozygous for a cleft chin as is his wife betty. john and betty have three kids all of which have a cleft chins. according to punnett square prediction what is the likelihood that their next child will have a cleft chin
Answer:
A
B
Explanation:
:))
Cells that are specialized
A)are less complex.
B)perform different functions for the organism.
C)reproduce.
D)are stem cells.
Answer:
perform different functions for the organism
Consider the characteristics of marine and freshwater ecosystems. It is an exceptionally cold winter and water all over the Earth is freezing. We would expect the extreme drop in temperatures to have the least effect on the ocean ecosystems because of what factors? All BUT ONE could apply.
A) salt concentration
B) sunlight at the equator
C) volume of the body of water
D) the fact that it is moving water
D) the fact that it is moving water.
Answer:
D) the fact that it is moving water
Explanation:
Water molecules form crystals while they freeze. Na + and Cl- ions of the salt are in the path of the water molecules, making it difficult to rearrange them in crystals. This means that the salt water of the ocean remains in the liquid state for longer when the temperature decreases.
For salt water to freeze, the temperature needs to be well below the melting temperature of pure water which is zero degrees Celsius (0 ° C). In addition, the volume of water in the ocean decreases chances of freezing and sunlight at the equator decreases the freezing point and increases the boiling point.
However, the movement of ocean waters does not interfere with the freezing of these waters.
Steroid hormones ________. begin their action outside the membrane usually diffuse through the plasma membrane into target cells bind to receptors in the plasma membrane are water soluble
Answer hormone signaling
seroid hormones hormon signaling it doesent make sense but its the correct answer pls mark me brainliest i need 1 more
HOPE THIS HELPS
Explanation:
Steroid hormones usually diffuse through the plasma membrane into target cells. Thus, the correct option for this question is B.
What are Steroid hormones?Steroid hormones may be defined as a type of hormones that are synthesized in the adrenal cortex, the gonads, and the placenta. They are all derived from cholesterol and many are of clinical importance. Steroid hormones are synthesized in the mitochondria and smooth endoplasmic reticulum.
According to the context of this question, lipid-derived (soluble) hormones such as steroid hormones diffuse across the membranes of the endocrine cell. Once outside the cell, they bind to transport proteins that keep them soluble in the bloodstream.
Therefore, steroid hormones usually diffuse through the plasma membrane into target cells. Thus, the correct option for this question is B.
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A _______ represents a single pathway through which energy and matter flow
The food chain would be the correct answer
Describe two applications of transgenic organisms
A genetically modified organism (GMO) is any organism whose genetic material has been altered using genetic engineering techniques. The exact definition of a genetically modified organism and what constitutes genetic engineering varies, with the most common being an organism altered in a way that "does not occur naturally by mating and/or natural recombination". A wide variety of organisms have been genetically modified (GM), from animals to plants and microorganisms. Genes have been transferred within the same species, across species (creating transgenic organisms) and even across kingdoms. New genes can be introduced, or endogenous genes can be enhanced, altered or knocked out.
Which of the following describes fat utilization during physical activity?
a. fat that is stored closest to the exercising muscle is oxidized first resulting in 'spot reduction'b. fat represents the major fuel source during sustained, moderate activityc. fat oxidation makes more of a contribution as the intensity of the exercise increasesd. fat is burned in higher quantities during short, high intensity exercises than prolonged, low intensity exercises
Answer:
D
Explanation:
Answer:
The answer is b)fat represents the major fuel source during sustained, moderate activity
Explanation:
During physical exercise, the majority use of fat will mainly be due to the intensity and duration of said exercise. According to the exercise, the intensity of the fat decreases and the fat contribution increases. For example, during low intensity and very long duration exercises, an increase in the use of fat begins as the only source of energy.
What is meant by the description antiparallel regarding the two strands that make up the dna double helix?
Answer:
It means that one strand of DNA is in 5'-3' orientation is complementary to other that is in 3'-5' orientation
Explanation:
Two strands in DNA double helix are in opposite directions alongside each other and that is called antiparallel orientation.
The 5' end of nucleic acid refers to phosphoryl end (phosphate group) while 3' end refers to hydroxyl (OH) group.
The property of anti-parallelism is important for the process of DNA replication.
Answer:
(B) The 5' to 3' direction of one strand runs counter to the 5' to 3' direction of the other strand.
Explanation:
During winter, the pigment-producing genes of the arctic fox and other arctic animals do not function and the result is a white coat. This is an example of ___________ change due to environmental influence.
Answer:
chamouflage
Explanation:
Answer: phenotypic
Explanation: phenotypic changes result from environmental variation in many animal or plant species
How does nuclear fusion differ fundamentally from nuclear fission? Nuclear fusion combines atomic nuclei. Nuclear fusion doesn’t produce energy. Nuclear fusion is a cold process. Nuclear fusion splits atomic nuclei.
A) Nuclear fusion combines atomic nuclei.
Answer:
Nuclear fusion combines atomic nuclei.
Explanation:
The main difference between nuclear fusion and fission is that nuclear fusion involves fusion of 2 smaller nuclei into a bigger nuclei. Nuclear fission on the other hand involves fission/splitting of a large radioactive nucleus into smaller nuclei which are comparatively stable.
Option 2nd is incorrect because nuclear fusion produces huge amount of energy more than even nuclear fission. Option 3rd is also incorrect because nuclear fusion is a real process not a cold process which is considered as hypothetical. Option 4th is also incorrect because nuclear fusion is a process in which 2 hydrogen nuclei fuse to form a helium nucleus which is bigger in size. That means fusion does not involve splitting of atomic nuclei.
A scientist noticed that a dark-colored peppered moth is more visible on a light-colored background than a light-colored peppered moth. He wonders, “Does this difference in visibility affect the survival rate of dark moths?” Which part of the scientific method does he need to carry out next?
Pose a question.
Form a hypothesis.
Interpret data.
Form a conclusion.
The answer is: Form a hypothesis
Answer:
Form a hypothesis
Explanation:
answer on edgen uity 2020
Why are carbon dioxide concentrations expected to increase? A. Carbon dioxide concentrations are expected to increase, because fossil fuel burning is expected to increase. B. Carbon dioxide concentrations are expected to increase, because of an increase in agriculture. C. Carbon dioxide concentrations are expected to increase, because more land will have to be cleared for increasing populations and agricultural use. D. All of the above Please select the best answer from the choices provided A B C D
The correct option is D. All of the above statements are carbon dioxide concentrations expected to increase.
A. Carbon dioxide concentrations are expected to increase because fossil fuel burning is expected to increase.
Burning fossil fuels (like coal, oil, and natural gas) for energy and transportation releases significant amounts of CO₂ into the atmosphere. This is a major contributor to increased CO₂ concentrations.B. Carbon dioxide concentrations are expected to increase because of an increase in agriculture.
Agriculture can contribute to CO₂ emissions through activities such as soil cultivation, which releases CO₂ from the soil, and through the respiration of plants and animals. However, this is generally a smaller contributor compared to fossil fuels.C. Carbon dioxide concentrations are expected to increase because more land will have to be cleared for increasing populations and agricultural use.
Clearing land (deforestation) for agriculture or urban development reduces the number of trees that absorb CO₂ and releases stored carbon from vegetation and soil into the atmosphere. This is a significant factor in CO₂ increases.All three factors (A, B, and C) contribute to increased CO₂ concentrations, making option D the most comprehensive and accurate choice.
The complete question is- Why are carbon dioxide concentrations expected to increase?
A. Carbon dioxide concentrations are expected to increase, because fossil fuel burning is expected to increase.
B. Carbon dioxide concentrations are expected to increase, because of an increase in agriculture.
C. Carbon dioxide concentrations are expected to increase, because more land will have to be cleared for increasing populations and agricultural use.
D. All of the above
HELP
What happens at the very end of mitosis?
Question options:
The nucleus splits again
Centrioles appear
The chromosomes divide
The cell membrane splits
The cell membranes split
At the very end of mitosis, the cell membrane splits. Option 4 is correct.
Mitosis is the process of cell division in which a parent cell divides into two identical daughter cells. It consists of several stages, including prophase, prometaphase, metaphase, anaphase, and telophase. Each stage has specific events that contribute to the division of genetic material and cellular components.
At the very end of mitosis, during the telophase stage, the cell membrane undergoes a process called cytokinesis, which involves the division of the cytoplasm to create two separate daughter cells. During cytokinesis, a cleavage furrow forms in animal cells or a cell plate forms in plant cells, marking the site where the cell will divide.
The cell membrane splits along the cleavage furrow or cell plate, effectively separating the cytoplasm and organelles into two distinct compartments. This division ensures that each daughter cell receives an equal distribution of cellular components, including the newly formed nuclei containing the identical set of chromosomes.
While the chromosomes divide during anaphase, this occurs earlier in mitosis and is not specific to the very end of the process. Similarly, the appearance of centrioles is characteristic of earlier stages, particularly during prophase when they contribute to the formation of the mitotic spindle.
In summary, at the very end of mitosis, the cell membrane splits through the process of cytokinesis, resulting in the formation of two separate daughter cells. This final step ensures the complete division of the cell's contents and the creation of genetically identical daughter cells ready to carry out their respective functions.
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Which of the following correctly pairs an ecological level with an example? Select ALL that apply.A. community - the fish, frogs, insects, and aquatic plant species that live in a particular lakeB. individual - a groundhog living in your backyardC. ecosystem - all of the species of plants and animals and the non-living resources in a tropical forestD. population - the five different finch species that live together in a particular forest
Answer:
A. community - the fish, frogs, insects, and aquatic plant species that live in a particular lake
B. individual - a groundhog living in your backyard
C. ecosystem - all of the species of plants and animals and the non-living resources in a tropical forest
Explanation:
A community is defined as a group of populations of two or more different species which inhabit the same area at a certain time.
Individual is defined as one type of organism.
Ecosystem includes communities, the environment, the non-living or abiotic conditions and their influence on living organisms.
Why is lily walking in the woods, counting how long it takes her to see a bird land in a tree?
Lily, or Sylvia in the text, is in the woods engaging in a deeper experience, possibly a personal quest or fulfilling a task, where birds and their nests play a significant narrative role.
It appears that Lily (or Sylvia, as per your reference) is not simply walking in the woods to see how long it takes to spot a bird landing in a tree, but rather she's engaged in a more complex, meaningful experience. This activity might be connected to a rite of passage, self-discovery, or a connection with nature. The references you provided suggest a narrative where the protagonist undertakes a quest or challenge, possibly to satisfy personal curiosity or to fulfill a task set by or for a stranger.
Within these moments, birds and their nests become significant elements of the storyline, revealing secrets or contributing to the character's understanding of the environment and potentially her own place within it.
Which term refers to the genetic control of continuously varying traits such as height?a. incomplete dominanceb. codominantc. polygenicd. multi-allelice. pleiotropic
Answer:
c. polygenic
Explanation:
Polygenic trait is trait that is controlled by more than one gene. This is different than Mendelian genetics in which one gene controls one trait (e.g. flower color). Expressed phenotype is mix of all genes that control it (each gene has the same influence on phenotype).
Traits that are polygenic are height, skin and hair color, intelligence etc.
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How does the number of chromosomes in a daughter cell compare to the number of chromosomes in a parent cell?
Question options:
The daughter cell has one-half the number of chromosomes.
The daughter cell has twice the number of chromosomes.
The daughter cell has one-fourth the number of chromosomes.
The daughter cell has the exact same number of chromosomes.
the answer is the first option
' the daughter cell has one half the number of chromosomes of the parent cell'
Which of the following models presents a species relationship as it would typically be drawn within a food web? Vertical model. From top to bottom: an oval with the label rabbit, a down arrow, an oval with the label fox. Vertical model. From top to bottom: an oval with the label fox, a down arrow, an oval with the label rabbit. Vertical model. From bottom to top: an oval with the label rabbit, an up arrow, an oval with the label fox. Vertical model. From bottom to top: an oval with the label fox, an up arrow, an oval with the label rabbit.
Final answer:
The correct food web model shows a predator like a fox above its prey, a rabbit because arrows in a food web indicate the direction of energy flow from the eaten to the eater.
Explanation:
The model that presents a species relationship as it would typically be drawn within a food web is the Vertical model. From top to bottom, you would have a predator such as a fox, shown with a down arrow to a prey species such as a rabbit. This is because, in a food web, arrows represent the flow of energy from the organism being eaten to the organism that does the eating. Therefore, the correct sequence within a food web is the second option: Vertical model. From top to bottom: an oval with the label fox, a down arrow, an oval with the label rabbit.
At what point in the female cycle would the indicated structure be prominent?
Answer:
During formation of the luteum.
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