An animal that has a four-chambered heart, is endothermic, and does not give birth to live offspring can be classified as a(n) :
A) amphibian.
B) reptile.
C) bird.
D) mammal.
E) mollusk.
Correct Answer:
Verified
Q39: Cartilaginous fishes are characterized by:
A)bony skeletons.
B)four-chambered hearts.
C)lungs
Q40: Cartilaginous fishes differ from lampreys because they:
A)lack
Q41: Why do amphibians need a moist environment?
A)The
Q42: Which characteristic do birds share with mammals?
A)a
Q43: The high body temperature of birds and
Q45: Why are reptiles better adapted to land
Q46: Birds belong to a related group of
Q47: A tadpole is a(n):
A)bony fish.
B)cartilaginous fish.
C)jawless fish.
D)amphibian.
E)invertebrate
Q48: Why don't reptilian embryos dry out in
Q49: Why can't amphibians be entirely terrestrial?
A)Their digestion
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