Multiple Choice
Which of the following have distinct central disks and long, flexible arms?
A) class Crinoidea (sea lilies and feather stars)
B) class Asteroidea (sea stars)
C) class Ophiuroidea (brittle stars)
D) class Echinoidea (sea urchins and sand dollars)
E) class Holothuroidea (sea cucumbers)
Correct Answer:
Verified
Correct Answer:
Verified
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