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Why does a person's heart rate increase during exercise? (1) Less oxygen is needed. (2) More oxygen is needed. (3) Less carbon dioxide is needed. (4) More carbon dioxide is…

Why does a person's heart rate increase during exercise? (1) Less oxygen is needed. (2) More oxygen is needed. (3) Less carbon dioxide is needed. (4) More carbon dioxide is…
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Why does a person's heart rate increase during exercise?

(1) Less oxygen is needed.
(2) More oxygen is needed.
(3) Less carbon dioxide is needed.
(4) More carbon dioxide is needed

asked
User Haneef
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8.1k points

2 Answers

5 votes
More oxygen is needed
answered
User Iladarsda
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8.1k points
3 votes
the answer is 2 more oxygen is needed
answered
User Jessems
by
8.9k points
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