Multiple Choice
Refer to the figure. 
Which animal shown in the figure has an anterior-posterior rather than an oral-aboral orientation of the mouth and anus?
A) Feather star (Comanthina schlegeli)
B) Sea urchin (Echinometra mathaei)
C) Sea cucumber (Bohadschia argus)
D) Sea star (Marthasterias glacialis)
E) Brittle star (Ophiarachna incrassata)
Correct Answer:
Verified
Correct Answer:
Verified
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