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Match the following Column-I with Column-II.
Column - I Column - II
a) Aplysia i) Calcareous spicule
b) Meandrina ii) Calcareous shell
c) Echinus iii) Calcareous coral
d) Sycon iv) Calcareous ossicle
(a) (b) (c) (d)
1. ii iii i iv
2. iii iv ii i
3. iv iii ii i
4. ii iii iv i

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answer is D.

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Detailed Solution

Aplysia - Calcareous shell

Meandrina - Calcareous coral

Echinus - Calcareous ossicle

Sycon - Calcareous spicule

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