Multiple Choice
The ossicles are penetrated by a meshwork of spaces filled with fibers and dermal cells; the meshwork is _____________ and is unique to echinoderms.
A) Pyloric ceca
B) Radial canals
C) Polian vesicles
D) Coelomocytes
E) Stereom
Correct Answer:
Verified
Correct Answer:
Verified
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