BIOLOGY HIGH SCHOOL

When you start to exercise, the body responds in various ways due to internal stimuli. one response is an increase in heart rate. identify a stimulus that would cause an increase in heart rate. a.a decrease in body temperature
b.an increase in oxygen levels in the blood
c.a decrease in the rate of cellular respiration
d.an increase in carbon dioxide levels in the blood?

Answers

Answer 1
Answer:

Answer: The correct answer is D) An increase in carbon dioxide level in the blood.

During exercise, contraction of muscles take place very quickly as they work harder during exercise. As more oxygen is required to burn calories efficiently, the demand for oxygen supply increases.  

When we start exercising, body temperature increases as the rate of cellular respiration also increases.

An increase in carbon dioxide in the blood causes increase in heart rate as there is more demand of oxygen for efficient contraction of the muscles.
Answer 2
Answer: D.an incerase in carbon dioxide levels in the body.

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In which male reproductive structure is fructose-rich fluid produced?

Answers

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Jellyfish don't have a true hydroskeleton, but they do use water for support and to help them move.A.) True
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Answers

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A compound has a ph of 6 in solution where very little of it has ionized the compound is a

Answers

Answer:

A compound has a ph of 6 in solution where very little of it has ionized the compound is a weak acid.

Explanation:

As you may know the pH scale is a scale that measures the degree of acidity of the substances. This scale has values ranging from 0 to 14.

On the pH scale, substances whose pH is less than 7 are classified as acidic, those with a pH greater than 7 are classified as basic, and those with a pH around 7 are considered neutral. The further away from number 7 the stronger the acid or base is. In this case, if a substance has a pH of 6, it means that that substance is a very weak, almost neutral acid.
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In eukaryotes , DNA is found in the cytoplasm of the cell

Answers

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What other factors could have cause a decrease in the hare population

Answers

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Which of the following statements is not true about the digestive system and its contribution to homeostasis? A. The digestive system helps to maintain the correct amounts of nutrients for the body tissues to do its job. B. The digestive system is responsible for monitoring the oxygen and carbon dioxide amounts in the blood and tissues. C. The digestive system breaks down food sources into the needed nutrients and deposits these nutrients into the blood for use by the cells. D. All of the above

Answers

Answer;

B. The digestive system is responsible for monitoring the oxygen and carbon dioxide amounts in the blood and tissues.


Explanations;

Homeostasis involves the maintenance of a constant body environment.

The digestive system is not responsible for monitoring the amounts of oxygen and carbon dioxide in the blood and tissues. (It is the function of the breathing system together with the circulatory system).

Digestive system instead helps maintain homeostasis in a number of ways, For instance;

-By changing the pH from the saliva for example, which makes the gastric environment acidic which helps the break down of food readily and fast and also protect the body from bacteria.

The statement that is NOT true about the digestive system and its contribution to homeostasis is: The digestive system is responsible for monitoring the oxygen and carbon dioxide amounts in the blood and tissues. The correct answer is B. 
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