Answers HSHEAC Health Sem 1 26-27 Nicotine, Tobacco, and Their Dangers — Cumulative examQuestion 5

5

QuizMultiple Choice

Nicotine, Tobacco, and Their Dangers — Cumulative exam

Question 5 • [HSHEAC] Health Sem 1 (26-27)

Why does the heart automatically adjust the flow of blood to match activity levels?

Answer

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.

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