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    Exam 32: Deuterostome Animals
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    When Bone First Evolved in Vertebrates, What Structure Did It
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When Bone First Evolved in Vertebrates, What Structure Did It

Question 17

Question 17

Multiple Choice

When bone first evolved in vertebrates, what structure did it form?


A) a jaw
B) a vertebrae
C) a skull
D) an endoskeleton
E) an exoskeleton

Correct Answer:

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