4873hindbronx 4873hindbronx

02-03-2018
Chemistry

contestada

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

Respuesta :

elitevox elitevox

02-03-2018

the answer is 2 more oxygen is needed

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kentavia9calhou kentavia9calhou

02-03-2018

More oxygen is needed

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