A water-vascular system is unique to the ____.
A) arthropods
B) annelids
C) chordates
D) mollusks
E) echinoderms
Correct Answer:
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Q52: Which annelid subgroup has many chitin-reinforced bristles
Q53: Each tapeworm proglottid contains _.
A)sperm only
B)fertilized eggs
Q54: The injectable pain-killing drug called Prialt is
Q55: Which animal(s) have four pairs of walking
Q56: Which are deuterostomes?
A)annelids
B)echinoderms
C)arthropods
D)mollusks
E)flatworms
Q58: A typical sponge is _ because it
Q59: The most diverse animal group is the
Q60: The vast majority of animals are _.
A)mammals
B)invertebrates
C)vertebrates
D)birds
E)predators
Q61: The function of the collar cells of
Q62: Match the description to the correct mollusk
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