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    Zoology
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    Exam 27: Nutrition and Digestion
  5. Question
    A Complete Digestive Tract First Appeared in This Type of Animal
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A Complete Digestive Tract First Appeared in This Type of Animal

Question 18

Question 18

Multiple Choice

A complete digestive tract first appeared in this type of animal.


A) flatworm
B) roundworm
C) earthworm
D) sea anemone
E) jellyfish

Correct Answer:

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