Topics: Respiratory System Quiz
What is the function of the ribcage?
A. It protects the lungs.
B. It helps the lungs pump oxygen.
C. It delivers oxygen from the lungs to the bloodstream.
D. It connects the trachea to the lungs.
Select your answer:

Topics:
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A. Hair papilla
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MND affects person’s mind/personlaity
A. TRUE
B. FALSE