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Sea lilies are the members of class...

Sea lilies are the members of class

A

Ophiuroidea

B

Asteroidea

C

Crinoidea

D

Echinodea

Text Solution

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The correct Answer is:
C
In male platypus a grooved erectile poison spine is present on the tarsus which is served by a poison spine is present on the tarsus which is served by a poison gland in the thigh. The poison is used to immobilize a female during coition
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