The madreporite in sea cucumbers is
A) absent.
B) internal.
C) external.
D) on the Polian vesicles.
E) near the anus.
Correct Answer:
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Q27: Sea lilies and feather stars belong to
Q28: Basket stars and brittle stars belong to
Q29: Sea cucumbers respire using
A)large feathery oral tentacles.
B)oral
Q30: The skeleton of sea urchins consists of
Q31: Which of the following echinoderms may contain
Q33: If a brittle star is grasped by
Q34: The function of Aristotle's lantern is
A)protection.
B)digestion.
C)chewing.
D)locomotion.
E)regeneration.
Q35: Of the following structures found in sea
Q36: Some sea cucumbers have special tubules of
Q37: Attached crinoids are called
A)sea daisies.
B)sea lilies.
C)sea urchins.
D)basket
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