Why does the activation of M-Cdk begin abruptly? Choose one: O The mitotic Cdk increases abruptly. O Each M-Cdk complex can activate more M-Cdk. O Mcyclin is rapidly phosphorylated and thereby activated. O M cyclin increases abruptly.

Answer:

bacteria

Explanation:

because they are the one that still been in use

Explanation:

i think they obtain food in order to get the energy they need to carry out life functions

Ameoba is single-celled organisms that need to obtain food in order to get the energy they need to carry out.

Through the procedure of phagocytosis ( which means cell-eating), which is a type of endocytosis, an Amoeba obtains its food.

Its cell membrane is pliable enough, food particles are consumed forming a food vacuole encircling it which is helped by the pseudopodia.

It secretes digestive enzymes to bring about digestion of the swallowed particle once the food is tangled.

Thus, Ameoba is a single-celled organism that needs to obtain food in order to get the energy they need to carry out.

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Answer:

ABC are correct functions of cilia

Explanation:

it allows substances to enter or exit the cell is not it's function

"Monstrosus"  is not one of the divisions of human beings organized by Linnaeus.

Linnaeus, a Swedish naturalist, classified human beings into four main groups or divisions based on physical characteristics such as skin color, facial features, and body structure. These groups were named after the continents they were thought to originate from. The four divisions were: Europaeus (Europeans), Asiaticus (Asians), Africanus (Africans), and Americanus (Native Americans).

"Monstrosus" is not one of the divisions of human beings organized by Linnaeus. This term was used to describe individuals who deviated from the norm or had physical abnormalities. However, it was not considered a separate division in Linnaeus' classification system.

It is worth noting that Linnaeus' classification system has been criticized for being simplistic and based solely on physical characteristics. It also perpetuated the idea of racial hierarchies, with Europeans being at the top of the hierarchy and Africans being at the bottom. Today, scientists recognize that race is a social construct and that genetic diversity within human populations is much more complex than what Linnaeus' system suggested.

As for the second set of options you provided, "social forces," "economic forces," and "political forces" are not related to Linnaeus' classification of human beings. These terms refer to broader societal factors that can influence individuals and groups within a society. So, the correct answer would be "monstrosus."

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The possible alleles in the ABO system are A, B, and O. A and B are co-dominant, meaning they both express their phenotype when present. O is recessive, meaning it is only expressed when both alleles are O. Thus, the possible genotypes are AA, AO, BB, BO, AB, and OO.

When an individual undergoes a blood type test, their blood is screened for the presence of A and B antigens on the surface of their red blood cells. Additionally, their blood serum is tested for the presence of antibodies against A and B antigens. Based on the results of these tests, an individual's blood type can be determined and their genotype can be inferred.

For example, if an individual has blood type A, their genotype could be either AA or AO. If they have blood type B, their genotype could be either BB or BO. If they have blood type AB, their genotype must be AB, as this is the only possible genotype that expresses both A and B antigens. Finally, if an individual has blood type O, their genotype must be OO, as this is the only genotype that does not express A or B antigens.

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Answer:

B. Insulin

Explanation:

Insulin controls blood sugar

Answer:

True

Explanation:

This process of producing new cells is called cell reproduction

The gas being collected is probably oxygen. Thus, option A. is correct.

Oxygen is gas, which is colorless, odorless, and tasteless, but essential for living organisms. Organisms take oxygen and convert into carbon dioxide. As source of carbon this carbon dioxide is taken up by plants and releases oxygen into the atmosphere.

Swedish chemist, Carl Wilhelm Scheele, discovered oxygen in 1772 by heating potassium nitrate, mercuric oxide, and many other substances. It is highly reacting non metal and oxidizing agent.

Liquid oxygen is cryogenic in nature. It has boling point of  –297°F (–183°C). when at room temperature it acts as gas, Therefore  student collecting gas is oxygen.

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C. The plaintiff can recover because the chemical plant failed to exercise reasonable care in maintaining the parking lot.

The plaintiff can recover damages because the chemical plant failed to exercise reasonable care in maintaining the parking lot is the correct option. Case of the injured plaintiff who fell in the parking lot of a chemical plant:The injured plaintiff was walking towards the entrance of the chemical plant when he fell in the parking lot of the chemical plant and injured himself. The chemical plant was located in an uninhabited area, and it stored dangerous toxic chemicals that needed to be specially contained.

The chemical plant exercised the utmost care in maintaining and containing the chemicals. The plaintiff, however, stepped into a pothole and twisted his knee while being distracted by his cell phone ringing.The plaintiff can recover:In the scenario presented, the chemical plant, as stated in the case, was found to have exercised utmost care in maintaining and containing the toxic chemicals on the premises. Therefore, options A and B can be dismissed. The plaintiff's injury was the result of a pothole in the parking lot, which means the plaintiff can claim compensation if the plaintiff establishes that the plant failed to exercise reasonable care in maintaining the parking lot. Therefore, the correct option is C. The plaintiff can recover because the chemical plant failed to exercise reasonable care in maintaining the parking lot.

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About 0.086 or 8.6% of the time, or an exponential probability, the next call will come in between 20 and 25 seconds.

To solve this problem, we will use the exponential probability density function (PDF) with a mean of 30 seconds (λ = 1/30).

Step 1: Calculate the probability of a call arriving after 20 seconds.
P(T > 20) = e^(-λt) = e^(-(1/30)(20)) = e^(-2/3) ≈ 0.5134

Step 2: Calculate the probability of a call arriving after 25 seconds.
P(T > 25) = e^(-λt) = e^(-(1/30)(25)) = e^(-5/6) ≈ 0.4274

Step 3: Subtract the probabilities to find the probability of a call arriving between 20 and 25 seconds.
P(20 < T < 25) = P(T > 20) - P(T > 25) = 0.5134 - 0.4274 = 0.086

So, the exponential probability of the next call arriving between 20 and 25 seconds is approximately 0.086 or 8.6%.

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Answer:

A. Empathy

Explanation:

i hope it helps:)

Answer:

A. change their research and include the study of materials other than paper and plastic.

Explanation:

Since both paper and plastic grocery bags are causing harm to the environment, the scientists who study this issue will most likely change their research to include the study of alternative materials that could potentially have a lesser impact on the environment. This is a logical step as they want to find a solution to the environmental problem they are studying. Altering the data or deciding to let people believe that neither paper nor plastic bags are harmful would not be ethical or scientifically valid and would not contribute to finding a solution to the environmental problem. Reading about the work of other scientists through time may provide some new ideas, but it would not address the immediate issue at hand.

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A) The ecosystem can support fewer foxes than grasshoppers.

An energy pyramid is also called ecological pyramid. It is a graphical representation of the energy that are found within the trophic levels of an ecosystem. The largest level of the pyramid is the producers that is present at the bottom and the shortest level is present on the top of the pyramid which is tertiary consumer that have very low in population. This make the structure like a pyramid. We know that the size of the fox is bigger than grasshopper so more energy is needed by the fox which causes fewer foxes can survive in the ecosystem.

So we can conclude that the ecosystem can support fewer foxes than grasshoppers.

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Answer:

It Must be D

Explanation:

Not sure how to explain

Most animal hormones are produced by endocrine glands. Among the given options, option (a) is correct:

Endocrine glands are specialized organs or tissues that produce and secrete hormones directly into the bloodstream. These hormones act as chemical messengers and travel through the bloodstream to reach their target cells.

Option (b) is partially correct but not entirely accurate. While some animal hormones are lipid-soluble molecules (such as steroid hormones), not all hormones fall into this category. Hormones can be classified into two main types: lipid-soluble (steroid hormones and thyroid hormones) and water-soluble (peptide hormones and amine hormones). Lipid-soluble hormones can easily cross cell membranes, while water-soluble hormones require specific receptors on the cell surface to transmit their signals.

Option (c) is also correct: hormones are carried to their target cells in the blood. They are released into the bloodstream by endocrine glands and then transported throughout the body, allowing them to reach their specific target cells or tissues.

Option (d) is incorrect. While some hormones are protein molecules (e.g., insulin and growth hormone), not all hormones are exclusively protein-based. As mentioned earlier, there are lipid-soluble hormones (such as steroid hormones) and other types of hormones as well.

Option (e) is incorrect. Hormones elicit different biological responses depending on their specific target cells. Different cells have different receptors, and the response to a hormone depends on the presence and activation of these receptors. Hormones act selectively on their target cells, and their effects can vary depending on the tissue or organ they are acting upon.

In summary, the correct statements are that most animal hormones are produced by endocrine glands and are carried to target cells in the blood. However, hormones can be lipid-soluble or water-soluble molecules, they can be protein-based or not, and they elicit different biological responses from their target cells. Hence the correct answer is option a).

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Answer:

For Darwin himself these five theories were apparently much more a unity than they appear to a person who analyzes them with modern hindsight. The five theories were: (1) evolution as such, (2) common descent, (3) gradualism, (4) multiplication of species, and (5) natural selection.

Isomerases are enzymes that catalyze the conversion of one isomer to another. Isomers are molecules that have the same molecular formula but different structural arrangements. Therefore, isomerases play a vital role in various biochemical pathways.

Now, coming to the question, whether reactions involving isomerases are anabolic, catabolic, or both, it depends on the specific pathway and the substrate involved. Anabolic reactions involve the synthesis of complex molecules from simpler ones, while catabolic reactions involve the breakdown of complex molecules into simpler ones. Isomerases can participate in both anabolic and catabolic pathways. For instance, isomerases play a crucial role in glycolysis, a catabolic pathway, where they catalyze the conversion of glucose-6-phosphate to fructose-6-phosphate. Similarly, isomerases are involved in the anabolic pathway of nucleotide synthesis, where they convert ribose-5-phosphate to ribulose-5-phosphate. Therefore, the correct answer to the question is option C, "both anabolic and catabolic." Isomerases can participate in both types of reactions depending on the pathway and substrate. In summary, isomerases are essential enzymes that catalyze the conversion of one isomer to another, and they can participate in both anabolic and catabolic pathways, depending on the specific pathway and substrate involved.

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A cladogram is a diagram that depicts evolutionary connections between various organisms by showing how they diverged from their common ancestor over time. In this context, interpreting cladograms can help determine which organisms evolved from a common ancestor like Pakicetus. The answer to the question, which organisms evolved from the common ancestor Pakicetus, is whales and hippos.The question asks which organisms evolved from the common ancestor Pakicetus.

Cladograms generally indicate how different groups of organisms are related, based on the similarities and differences between them. Pakicetus is an ancestor of cetaceans, which includes whales and dolphins. Based on the evolutionary relationships shown on a cladogram, we can see that the hippos are the closest living relatives of cetaceans. Therefore, we can infer that whales and hippos evolved from the common ancestor Pakicetus. Hence, the correct answer to the question is "whales and hippos."

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Answer:

The main difference between the scientific method and the CER is the number of steps recommended by each one to make a valid scientific observation.

Explanation:

The scientific method consists of a set of steps that aims to establish a scientific experiment capable of explaining a scientific phenomenon hitherto unknown, or little explained. The scientific method consists of many stages, where each completes the other.

The CER method, on the other hand, has only three stages, which are claim, evidence, reasoning. This method can be established and finalized more quickly than the scientific method and is not as judicious, but it also presents efficient results to justify or explain a scientific phenomenon.

Transport proteins in the cell membrane allow for selective passage of specific molecules from the external environment.

Answer:

True

Explanation:

It is true that Simple carbohydrates DO include monosaccharides and disaccharides.

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Answer:

It's either C. or D. I think I'm more leaning toward all of the above.

Explanation:

Adaptation is when organisms change to adapt to the environment.

For example, a white moth could turn black to blend in with certain tree barks, shadows, dirt, etc. Hope this helped!

Answer:

They are similar yet different because

Explanation:

the male reproductive organ has to send male reproductive cells to the female reproductive organ and fertilise the female reproductive cell

but in animal they are two different organisms yet the same spicie but in flower it can be the same flower

Active transport

Explanation: There are two major ways that molecules can be moved across a membrane, and the distinction has to do with whether or not cell energy is used. Passive mechanisms like diffusion use no energy, while active transport requires energy to get done.

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Answer:

the answer is b

Explanation:

i did the test