Why does the heart automatically adjust the flow of blood to match activity levels? A. Extreme activity damages blood cells and the body needs replacements. B. The heart requires more oxygen when exercising. C. It reduces the level of oxygen in the blood. D. Organs and muscles require more blood under stress. Please select the best answer from the choices provided. A B C D.

Answers

Answer 1

The heart is the primary organ, which pumps blood through the body. The heart automatically adjusts the blood flow to match the activity levels by the intake of more oxygen.

The heart functions appropriately in the presence of oxygen. During a time of activity or an exercise, the body requires an extra amount of energy to meet the needs of the activity. The heart adjusts itself by taking up more oxygen so that the blood flow is increased and the oxygen demand is met.

The heart pumps necessary blood volume to different parts of the body such that, the body does not suffer from any physiological problems.

Thus, the heart sets the blood flow by taking up more oxygen. The correct answer is Option B.

To know more about heart, refer to the following link:

https://brainly.com/question/7126207

Answer 2

The correct answer is A!

~Hope this helps!

(sorry if I'm wrong although I shouldn't be)


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Explanation:

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Which STI is best treated with prescription shampoo and body wash?

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heredity
community
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The answer is environment.

Environment contains us along with our surroundings.Remember this: Organism < Population < Community < Environment.

Hope you could get an idea from here.

Doubt clarification - use comment section

Answer:

Environment

Explanation:

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Kathy became addicted to alcohol in her teen years. Which factors influenced her drinking? Check all that apply.

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Answer:

Explanation:

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Explanation:

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Answer:

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Answer:

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Explanation:

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Sarah is Environmental science worker at the hospital.

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Learn more here:

https://brainly.com/question/10696695

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Answer:

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Explanation:

Uh- if this made no sense or is incorrect in any kind of way please lmk!

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Learn more here: https://brainly.com/question/15864680

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Answer:

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Explanation:

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Answer:

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Hope this helps

Have a great day

~Zero

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This is for P.E, I really need help!


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Answer:

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Answer:

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Answers

Answer:  B. All of the goals reflect the same specific topic

Explanation: The whole quiz (quest./ ans.) is on quizlet btw

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Learn more: https://brainly.com/question/2862283

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Answer:

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Explanation:

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Answer:

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things you can try

I get really bad stomach aches a lot and some things that help is heating pads, medication (ask before using), laying down/resting, drinking a lot of water! Hope this helps! Hopefully it’s nothing to bad, hope you feel better❤️

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