Tetrapods (amphibians, reptiles, and mammals) all share a common ancestor. which of these traits was not present in the common ancestor of all tetrapods (amphibians, reptiles, and mammals):
a. amniotic egg
b. vertebral column
c. digits
d. paired appendages
e, jaws
Answers: 3
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Tetrapods (amphibians, reptiles, and mammals) all share a common ancestor. which of these traits was...
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