rtwid5g0etstini
rtwid5g0etstini rtwid5g0etstini
  • 02-09-2016
  • Biology
contestada

Which factor affects the heart rate in mammals?



RBC count in blood



Blood type



Need for oxygen

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taskmasters
taskmasters taskmasters
  • 06-09-2016
I think the correct answer from the choices listed above is the last option. It is the need for oxygen that affects the heart rate in mammals. Depending on the needs of these organism, the oxygen needed for the processes inside the body varies which then affect the heart rate.
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timmyholm49 timmyholm49
  • 26-04-2019

Answer:

c

Explanation:

i got them all right

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