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Q.

In frog which of the following is/are external?

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a

Both A and B

b

Fertilisation

c

Ovulation

d

Development

answer is D.

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Detailed Solution

Both fertilisation and development are external in frog. During amplexus (pseudocopulation), the female frog spawns in water and male frog releases his sperms on to it as milt. They fertilise together in water. Further development also takes place in water So fertilisation as well as development in frog are external.

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