Question

why do fish and frog lay more number of eggs whereas cow and human beings easily give birth to only one at a time ​

Answer 1

Answer:

fish and frog lay more number of eggs compared to human beings and cow because of external fertilization which occurs in fishes in frog, female lay vast number of egg in water , so fertilization is acchange factor and also controlled by nature.............

Answer 2

Explanation:

1)External fertilization occurs in fish and frog.

2)The females lays a vast number of eggs in water & males releases some millions of sperms on to them.

3)Eggs may be carried to a long distance by water currents or they may be eaten by predators. ...

Hence it is inevitable to produce a vast number of eggs by fish & frog.

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