In all coelomates,the coelom develops entirely within the
A) endoderm.
B) mesoderm.
C) ectoderm.
D) mesoglea.
Correct Answer:
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Q8: Choose the largest block of time.
A)Era
B)Epoch
C)Period
D)Age
Q13: The first vertebrates to invade land were:
A)amphibians
B)birds
C)reptiles
D)arthropods
Q32: Free-living flatworms
A) do not have eyespots.
B) have
Q32: You are at a restaurant and order
Q34: Which of these is not a characteristic
Q35: Sand dollars,sea stars,sea cucumbers,and sea urchins all
Q36: Animal phylogenies based on molecular data divide
Q40: Reproductive methods among the _ are the
Q41: Bony fishes possess an operculum to
A) regulate
Q42: Most modern mammals are
A) marsupials.
B) monotremes.
C) placental
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