Multiple Choice
The ___ Echinoderm lineage is made up of sea urchins and sand dollars, whose ossicles are fused into solid tests that restrict flexibility but provide excellent protection.
A) Echinoidea
B) Ophiuroidea
C) Crinoidea
D) Holothuroidea
E) Asteroidea
Correct Answer:
Verified
Correct Answer:
Verified
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