★ The Digestive System Quiz
What breaks food into smaller pieces?
A. mouth
B. tongue
C. teeth
D. large intestine
Select your answer:
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Human Body Systems › ViewWhat is the main job of the digestive system?
A. break down foods into nutrients that can be used by the body
B. take in oxygen and exhale waste like carbon dioxide
C. pump blood throughout the body
D. makes the body hungry
Energy and Metabolism › View
How many kilocalories does an average adult man require per day?
A. 2000
B. 3000
C. 1500
D. 2500