★ Heart Anatomy Quiz
The purpose of heart valves is to
A. set the pace at which the heart beats
B. prevent blood from flowing backward
C. oxygenate the blood as it passes through the valve
D. add minerals to the blood
Select your answer:
Topics:
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Physical › ViewWhich one is true ?
A. People easily love to get chronic disease
B. People die easily after get chronic disease
C. People can avoid chronic disease by changing lifestyle
Food › View
Proteins are found in…
A. dried beans, peas, and nuts
B. milk and eggs
C. meat, fish, and poultry
D. All choices are correct