20.During inhalation diaphragm
a ) Relaxes and rib muscles contract
c) and rib muscles both relaxes
b) contracts and rib muscles relax
d) and rib muscles both contracts
Answers
Answered by
1
Answer:
b. Contracts and ribs relax.
Answered by
5
Answer:
b is the answer
as diaphagram contracts while we inhale .
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