Trichoplax adhaerens has no nerve cells, but scientists have discovered
A) genes that encode signaling molecules.
B) a response to harsh chemicals.
C) movement toward a food source.
D) adherence genes.
E) none of these.
Correct Answer:
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Q10: Which of the following are most closely
Q16: Poriferans are
A) herbivores.
B) filter feeders.
C) scavengers.
D) predators.
E)
Q25: Which of the following organisms exhibits cephalization?
A)snail
B)sea
Q26: Feeding in sponges is dependent on
A)collar cells.
B)pores.
C)water
Q28: Which of the following is NOT true
Q30: Trichoplax adhaerens is considered the closest animal
Q31: Trichoplax adhaerens resembles?
A)snail
B)sea anemone
C)sea star
D)sponge
E)a hairy sticky
Q32: Use the figure above to answer questions
Q33: Sponges have which of the following?
A)symmetry
B)organs
C)anus
D)spicules
E)appendages
Q34: Trichoplax is a
A)sponge.
B)cnidarian.
C)placozoan.
D)choanoflagellate.
E)flatworm.
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