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finlep [7]
3 years ago
8

Do you think there is a relationship between heart rate and blood flow?

Biology
1 answer:
zaharov [31]3 years ago
7 0

Yes, there is a relationship between heart rate and blood flow.

<u>Explanation:</u>

The relation ship between the heart rate and blood flow is that with the increase in heart rate, the flow of the blood also increases but the increase in the flow of the blood is not as fast as the rate of beating of heart increases in comparsion.

Even though the heart is beating more times in a minute, healthy blood vessels get larger amount of blood to flow in an easier way when heart beat gets faster.

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Answer: Its A

Explanation:

I took the test

3 0
2 years ago
Describe Lamarck’s idea about how organisms evolved. Use the giraffe’s neck as an example.
Murljashka [212]

Answer

Lamarckism, a theory of evolution based on the principle that physical changes in organisms during their lifetime—such as greater development of an organ or a part through increased use—could be transmitted to their offspring.

Lamarck believed that the stretching elongated the giraffe's neck, which became a useful characteristic and was passed onto future generations. This resulted in the length of the giraffe's neck increasing over time. It is now commonly accepted that Lamarck's ideas were wrong.

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3 years ago
1. Increased efforts to conserve areas such as rain forests are necessary in order to
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Answer:

1. Protect biodiversity

2. An indicator species

3. Biomagnification

4. Cutting down all the trees for lumber

5. Bioaccumulation

Explanation:

1. Conserving areas such as rain forests protect biodiversity because rain forests hold one of the highest biodiversity. They carry different types of resources that support different forms of life and at the same time, the organisms that live there support each other as well.

2. An indicator species is an organism that scientists can observe to see if there are changes in the environment it lives in. They judge the change or the implications based on the absence of the species in the environment (in which they used to be present), the presence of the species, and markers of adaptation due to the change in the ecosystem.

3. Biomagnification is a term used when contaminants that were consumed by the organisms in the lower trophic level are passed on to the next trophic level in higher concentrations. This is why those in the highest trophic levels are affected the most because they get the higher concentration of contaminants. DDT was banned when this phenomena was observed.

4. The greatest decrease in rain forest stability would be due to the cutting of trees. We can disrupt stability by gathering resources like nuts from some trees or when you remove one species of plant for medicine. However, the trees are an essential part of the rain forest because each part or area of the tree support different organisms. By cutting the whole trees off and several of them, you doom the organisms that rely on them as well.

5. As mentioned above, bioaccumulation is often interchanged with biomagnification but they differ in the usage of the terms. Like biomagnification, it talks about the accumulation of contaminants in organisms that ingest or absorb them. But bioaccumulation is a term used in a smaller scale, where it talks about the accumulation of the contimants in the tissues of the organism and not how they are passed on.

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3 years ago
The nurse is monitoring a diabetic client with a blood glucose level of 400 mg/dl (22.2 mmol/l). which clinical manifestation wo
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With the given results, in order for the nurse to identify the clinical manifestations of diabetic ketoacidosis in which the client would likely have, she needs to observe the following manifestations such as; rise of the blood glucose level which beyond the normal range, there is a rapid breathing which would likely occur that he or she finds it difficult to breathe normally, there is a presence of pain in the abdomen, excessive need of fluids as he or she manifest excessive thirst and lastly, his or her results in the plasma bicarbonate is in the low level. These manifestations could indicate that the client has diabetic ketoacidosis.

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Explain host and guard cell​
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