paigek1022 paigek1022
  • 25-04-2018
  • Biology
contestada

Upon vigorous exercise, your heart rate increases to 200 beats per minute to supply sufficient oxygen to muscles. Which is responsible for this regulation of the heart rate?

Respuesta :

bobbycrud bobbycrud
  • 08-05-2018
sinoatrial node i am 100 percent sure thats the correct answer
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timmyholm49 timmyholm49
  • 26-04-2019

Answer:

B

Explanation:

I got it correct

Answer Link

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