cexe1118 cexe1118
  • 04-04-2018
  • Biology
contestada

In the human respiratory system, gas exchange occurs across the cells of the ________. select one:
a. trachea. bronchi
c. diaphragm
d. pharynx
e. alveoli

Respuesta :

cupofmice
cupofmice cupofmice
  • 04-04-2018
answer = e. alveoli
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