Birds are the only modern amniotes with ____.
A) wings
B) feathers
C) a four-chambered heart
D) ectothermic metabolism
E) more than one of these
Correct Answer:
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Q56: The vertebrate lung first appeared in _.
A)
Q57: Which physical feature makes it possible for
Q58: Tetrapods are most closely related to _.
A)
Q59: Which vertebrate is a fish that has
Q60: The vertebral column develops from the _.
A)
Q62: Which animal nurses its young, has forward
Q63: One feature shared by modern humans and
Q64: A _ lays water-proof eggs and nourishes
Q65: Which primate group is classified as hominins?
A)
Q66: The most diverse of the mammals are
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