Features unique to mammals include ______.
A) the presence of hair
B) extended parental care of the young
C) being endotherms
D) having no egg-laying members
Correct Answer:
Verified
Q24: All chordates have _.
A)a dorsal, hollow nerve
Q29: The lancelet is a(n)_.
A)annelid
B)flatworm
C)chordate
D)tunicate
Q30: Which group of fishes includes a lineage
Q31: The platypus is a _.
A)bird
B)marsupial
C)eutherian
D)monotreme
Q31: A feature that freed reptiles from dependence
Q36: Swim bladders _.
A)contain the gills
B)are required for
Q37: Which of these human characteristics evolved first?
A)
Q39: Among vertebrates, the unique feature of lampreys
Q40: Where did humans first appear?
A)South America
B)Africa
C)Asia
D)Europe
Q47: The first hominid to spread beyond Africa
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