Which of thfollowing cushions anprotects internal organs yet moves independently of thbody wall?
A) the coelom
B) the mesoderm
C) the mantle
D) the water-vascular system
E) all of these
Correct Answer:
Verified
Q10: Sponges are _.
A) herbivores
B) filter feeders
C) scavengers
D)
Q23: In _, thfirst embryonic opening becomes an
Q24: Which onof thfollowing do sponges display?
A)definite symmetry
B)organs
C)anus
D)glasslike
Q25: Which of thfollowing statements is NOT true?
A)Mammals
Q26: Which of thfollowing arcnidarian body shapes?
A)spongiforms
B)polyps
C)medusae
D)spongiforms and
Q27: Spongcells obtain nutrients by
A)absorbing food that diffuses
Q30: An animal with bilateral symmetry
A)has a left
Q31: Major trends in thevolution of animals include
A)cephalization,
Q32: A digestivtrack is saito bcompletif it
A)possesses specialized
Q33: In a sponge, which of thfollowing cells
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