Which of these groups is characterized by having no body cavity?
A) Roundworms
B) Annelids
C) Chordates
D) Arthropods
E) Cnidarians
Correct Answer:
Verified
Q18: Anemones have no
A) mesoderm.
B) ectoderm.
C) endoderm.
Q19: Damage to the embryonic ectoderm would show
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)
Q24: The currents of water (containing food) that
Q25: Which cnidarian is the basis of many
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)
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