★ Breathing System Quiz
What is the function of the ribs and intercostal muscles?
A. To carry air to and from the lungs
B. To warm and moisten the air
C. To trap dirt particles and bacteria
D. To cause air to move into or out of the lungs
Select your answer:
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Life Processes › Viewright side of the heart is high in
A. O2
B. H
C. C
D. CO2
Mechanical Digestion › View
which one of these is pulp cavity
A. A
B. B
C. C
D. D