In sponges, cells differentiate into sperm or eggs in the _____. Only _____ are released into the water.
A) mesohyl; sperm
B) mesohyl; choanocytes
C) mesohyl; spicules
D) cavity; sperm
E) cavity; choanocytes
Correct Answer:
Verified
Q41: Not all sponges have skeletons. If they
Q42: Cnidarians and ctenophores are included in the
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.
Q47: Cnidarians share a common body plan that
Q48: In cnidarians, the mouth of both the
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
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