dreagen dreagen
  • 01-09-2015
  • Biology
contestada

which factor affects the heart rate in mammals

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gabby5792
gabby5792 gabby5792
  • 01-09-2015


A mammals need for oxygen effects their heart rate because there could be some cases where they're in lack of oxygen causing them to be literally ' out of breath ' . Like climbing a mountain. The higher you go the less oxygen.


Hope I helped !!11!!!!!    :)

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hiving hiving
  • 22-04-2021

Answer:

C. Need for oxygen

Explanation:

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