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Match the following
Column-I Column-II
a) Annelida i) Water vascular system for locomotion
b) Arthropoda ii) Unsegmented body with calcareous shell
c) Mollusca iii) Jointed appendages with chitinous exoskeleton
d) Echinodermata iv) Nephridia for osmoregulation and excretion
a b c d
1) iv iii ii i
2) iii iv ii i
3) iv iii i ii
4) iii iv i ii

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answer is A.

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Detailed Solution

Annelida – Nephridia for osmoregulation and excretion;
Arthropoda – Jointed
appendages with chitinous exoskeleton;
Mollusca – Unsegmented body with calcareous shell;
Echinodermata – Water vascular system for locomotion.

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