This statement is True.
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Food is pushed through the digestive tract by muscle contractions called
<span>peristalsis.</span>
B. cholesterol is a steroid
The right side of your heart receives oxygen-poor blood from your veins and pumps it to your lungs, where it picks up oxygen and gets rid of carbon dioxide. The left side of your heart receives oxygen-rich blood from your lungs and pumps it through your arteries to the rest of your body.
