GENERAL HISTOLOGY

OESOPHAGUS STOMACH

ECHINODERMS

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Sea lilies have ____
A
Minute calcified plates embedded in fleshy skin
B
Feathery, branching rays made up of tiny calcified plates
C
Flattened, inflexible endoskeletons
D
None of the above.
Explanation: 
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