An incomplete digestive system is characterized by having __________.
A) no digestive enzymes
B) no elimination of wastes
C) only one opening
D) only partial absorption of nutrients
E) None of the answers are correct.
Correct Answer:
Verified
Q45: Mechanical digestion of food begins in the
Q46: The liquid mixture of food,water,acid,and enzymes in
Q47: Peristalsis is a process that _.
A) mechanically
Q48: In the esophagus,peristalsis _.
A) mechanically breaks down
Q49: Peristalsis is involved in _.
A) moving food
Q51: In the upper digestive tract,enzymes are produced
Q52: In the stomach,peristalsis _.
A) mechanically breaks down
Q53: Digestion in fungi is similar to digestion
Q54: In the upper digestive tract,mechanical breakdown occurs
Q55: The _ connect(s)the mouth to the stomach.
A)
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