Which cnidarian is the basis of many impressively diverse marine habitats?
A) Coral
B) Jellyfish
C) Sea cucumber
D) Hydra
E) Anemone
Correct Answer:
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Q20: The skin and nervous tissues develop from
Q21: Worms with a well- developed circulatory system
Q22: Insects are members of the group
A) Arachnida.
B)
Q23: Which of these groups is characterized by
Q24: The currents of water (containing food) that
Q26: A cnidarian that builds a calcium carbonate
Q27: A(n) provides support and protection to arthropods.
A)
Q28: are characterized by having a pseudocoelom.
A) Cnidarians
B)
Q29: Giant squids are classified as
A) arthropods.
B) mollusks.
C)
Q30: Flatworms lack
A) a reproductive system.
B) a respiratory
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