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Volgvan
3 years ago
8

The work of the respiratory system can be divided into four parts. Which of the following is not one of these? A. Ventilation B.

Diffusion C. Excretion D. Perfusion
Health
2 answers:
aleksklad [387]3 years ago
7 0
I would have to say that D) perfusion would NOT be one of the four parts of the respiratory system.
Charra [1.4K]3 years ago
3 0
C. Excretion

Excretion is part of the excretory and really has nothing to do with the respitory system which deals with gas exchange.
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