Multiple Choice
Calcareous or siliceous elements of the sponge body wall provide support.These elements are called
A) amoebocytes.
B) pinacocytes.
C) choanocytes.
D) spicules.
E) spongin.Spicules are supportive,calcareous structures in the body wall of many sponges.
Correct Answer:

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Correct Answer:
Verified
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