The first vertebrates to develop jaws were the:
A) fish.
B) amphibians.
C) mammals.
D) reptiles.
Correct Answer:
Verified
Q49: An important characteristic common to most primates
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Q51: The amniotic egg was important in the
Q52: Modern birds are probably direct descendants of:
A)marsupials.
B)iguanas.
C)dinosaurs.
D)crocodiles.
Q53: Which of the following would support a
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Q57: The earliest evidence of life on Earth
Q58: Primates first appear in the fossil record
Q59: Some of the more advanced organisms in
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