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Biology, 24.09.2019 01:30 tayler6289

What happens when the diaphragm contracts?
a. the rib cage moves down.
b. the volume of the thoracic cavity increases.
c. the diaphragm rises.
d. the volume of the thoracic cavity decreases.

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What happens when the diaphragm contracts?
a. the rib cage moves down.
b. the volume of t...

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