The fur of mammals
A) consists of underhair and guard hair.
B) is molted twice annually in most mammals.
C) is composed of keratin.
D) is used for a variety of purposes such as protection,temperature regulation,etc.
E) All of the choices are correct
Correct Answer:
Verified
Q5: The glands that are NOT derived from
Q6: True horns are
A)the same as antlers.
B)restricted to
Q7: The adaptive diversification of early mammals was
Q8: Which is NOT one of the cynodont
Q9: Mammals began a dramatic expansion in the
A)Pleistocene.
B)Paleocene.
C)Oligocene.
D)Triassic.
E)Eocene.
Q11: The only therapsid group which survived to
Q12: The teeth of mammals are
A)homodont.
B)placoid.
C)diphyodont.
D)polydont.
E)continuously replaced.
Q13: A grazing animal,such as a cow,that mainly
Q14: Mammals belong to the
A)anapsid lineage.
B)synapsid lineage.
C)diapsid lineage.
D)polydont
Q15: Although there are exceptions,which of the following
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