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Subject :NSO    Class : Class 5

Which one of these groups contains only animals with a backbone (vertebrates)?

(A) Earthworm, snake, crayfish

(B) Crayfish, snake, horse

(C) Roundworm, fish, earthworm

(D) Horse, snake, fish.


snakes don't have a backbone

Ans 1:

Class : Class 5
option D

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