Question

In bony fishes and frogs external fertilization occur. Pointout any one advantage and one disadvantage of this type of gametic fusion

Answer 1

Large no of progeny....is advantage

Threatened of predator... Is disadvantage

Answer 2

External fertilisation is seen in many animals such as frogs and fish.

In this kind of propagation, the eggs of the female are fertilised by the male outside the body of the woman.

This has remarkable advantages as well as drawbacks.

One benefit is that it leads to a large number of offspring being formed and so greater chances of genetic continuity.

One disadvantage is that it requires a lot of energy.