The platypus is a ________.
A) bird
B) marsupial
C) eutherian
D) monotreme
Correct Answer:
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Q24: All chordates have _.
A)a dorsal, hollow nerve
Q25: _ are the mammalian group that lays
Q26: Which of the following is a characteristic
Q27: Almost every element of bird anatomy is
Q28: A characteristic that is shared by snakes
Q29: The lancelet is a(n)_.
A)annelid
B)flatworm
C)chordate
D)tunicate
Q30: Which anthropoids are most closely related to
Q30: Which group of fishes includes a lineage
Q36: Swim bladders _.
A)contain the gills
B)are required for
Q38: Rays are a type of _.
A)tunicate
B)cartilaginous fish
C)jawless
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