The high body temperature of birds and mammals is due to
A) the exchange of gases and nutrients via the placenta.
B) the fur that insulates them.
C) their high metabolic rates.
D) the presence of sweat, scent, and sebaceous glands.
E) behaviors such as basking in the sun and seeking shade.
Correct Answer:
Verified
Q55: Which of the following is essential for
Q56: A marsupial is a(n)
A) amphibian.
B) bird.
C) mammal.
D)
Q57: A tadpole is a(n)
A) amphibian.
B) cartilaginous fish.
C)
Q58: Why are reptiles better adapted to land
Q59: Why do amphibians need a moist environment?
A)
Q61: The shelled egg of reptiles prevents the
Q62: Salamanders are the only vertebrate capable of
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Q64: Skates and other cartilaginous fishes lack jaws.
Q65: The amnion creates an aquatic environment for
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