Why do fish and frog produce a huge number of eggs each year?

1.	Why do fish and frog produce a huge number of eggs each year?
Answer» 1. External fertilisation occurs in fish and frog. 2. The female lays a vast number of eggs in water and male releases some millions of sperms on to them in water. 3. Eggs may be carried to a long-distance by water currents or they may be eaten by predators. 4. So fertilisation is a chance factor and controlled by nature. 5. Fertilisation occurs externally hence it is inevitable to give rise to vast number of eggs by fish and frog.

Answer»

1. External fertilisation occurs in fish and frog.

2. The female lays a vast number of eggs in water and male releases some millions of sperms on to them in water.

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

4. So fertilisation is a chance factor and controlled by nature.

5. Fertilisation occurs externally hence it is inevitable to give rise to vast number of eggs by fish and frog.

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