A cnidarian that builds a calcium carbonate skeleton is a(n)
A) snail.
B) crab.
C) oyster.
D) clam.
E) coral.
Correct Answer:
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Q27: Which of these groups is characterized by
Q28: What causes schistosomiasis, a devastating disease that
Q29: Sponges have
A) an exoskeleton.
B) a gastrovascular cavity.
C)
Q30: Which invertebrate animal group is characterized by
Q31: Ecdysozoans
A) have a body cavity that forms
Q33: Which cnidarian is the basis of many
Q34: A(n)_ provides support and protection to arthropods.
A)
Q35: An animal such as a grasshopper can
Q36: Worms with a well-developed circulatory system (including
Q37: The phylum Nematoda includes which of the
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