In cnidarians, the mouth of both the medusa and polyp form opens into an internal _____ where _____ digestion takes place.
A) gastric cavity; extracellular
B) gastric cavity; intracellular
C) mesoglea; extracellular
D) mesoglea; intracellular
E) None of the answer options is correct.
Correct Answer:
Verified
Q43: One of the earliest-evolving groups of organisms
Q44: Cnidarians form true epithelial tissue.
Q45: The phylum Cnidaria includes:
A)sponges.
B)jellyfish.
C)corals.
D)placozoans.
E)comb-jellies.
Q46: In sponges, cells differentiate into sperm or
Q47: Cnidarians share a common body plan that
Q49: In the past, species of sponges, cnidarians,
Q50: Which of the following statements accurately describe
Q51: Multicellularity allows sponges to:
A)reproduce.
B)access nutrients.
C)form a protective
Q52: In sponges, the cells responsible for generating
Q53: Many biologists were surprised by molecular data
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