Question

why do fishes and frogs lay hundreds of eggs but a hen lays only one?

Answer 1

The fishes and frogs can lay more than hundreds of eggs but a hen lay only one because the fishes and frogs lay very small eggs but the hens not

Answer 2

because the egg of hen is in the uterus of it ....when the egg is formed it instead of taking birth goes direct tothe opposite of fallopian tube and many protective layer are formad....the height cell is one such layer ....