Question

why extrenal fertilization is disadvantage to animals when compared to internal fertilization ​

Answer 1

here is the answer

external fertilization is disadvantage to animals because they lay so many eggs outside the water or inside the water

there some of the eggs are eaten by predator so their some the egg can survive whereas in internal Fertilization the egg is safe...

hope it helps you

Answer 2

Hey!

Here is your answer.

Internal fertilisation occur in organisms like human and external fertilisation occur in organisms like frogs.

Disadvantage if external fertilisation is that there is less chances of meeting of sperm and ova whereas in internal fertilisation there is more chances if fertilisation.

More no of sperms are delivered in external fertilisation as compared to internal fertilisation to increase efficiency of fertilisation.

I hope you got it.