In the digestive system, peristalsis is
A) a process of fat emulsification in the small intestine.
B) voluntary control of the rectal sphincters regulating defecation.
C) the transport of nutrients to the liver through the hepatic portal vein.
D) a common cause of loss of appetite, fatigue, and dehydration.
E) smooth muscle contractions that move food along the esophagus.
Correct Answer:
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Q10: To maintain adequate nutrition, animals require dietary
Q11: Bile salts
A)are enzymes.
B)are manufactured by the pancreas.
C)emulsify
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Q18: The richest source of stored chemical energy
Q18: The fat-soluble vitamins include
A) vitamin A.
B) vitamin
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Q20: Because the foods eaten by animals are
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