piggie2927 piggie2927
  • 23-10-2017
  • Biology
contestada

Heart rate becomes elevated during exercise because of the increase in demand for _______________ in the muscle tissues.
a. glycogen
b. nitrogen
c. oxygen
d. glucose

Respuesta :

pmurray pmurray
  • 23-10-2017
C. Oxygen, I believe
Answer Link

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