How is reproduction in mammals different from reproduction in amphibians Give any two points of difference - Science - Reproduction in Animals

Question

How is reproduction in mammals different from reproduction in
amphibians? Give any two points of difference

Neha U. · Accepted Answer

Internal
fertilization
External
fertilization

Fertilization occurs inside the female's
body
Fertilization occurs outside the female's
body

Sperms are ejaculated in the form of
fluid in female's body which then combines with egg
The male releases sperm cells onto the
eggs which are laid external to the female's body

Mostly occurs in terrestrial animals and
humans
Mostly occurs in amphibians and aquatic
animals

The number of sperms and eggs produced is
comparatively less
The number of sperms and eggs produced is
more in comparison to internal fertilization

Example: Human beings, Birds

Example: Fishes, Frogs

Internal fertilization	External fertilization
Fertilization occurs inside the female's body	Fertilization occurs outside the female's body
Sperms are ejaculated in the form of fluid in female's body which then combines with egg.	The male releases sperm cells onto the eggs which are laid external to the female's body.
Mostly occurs in terrestrial animals and humans	Mostly occurs in amphibians and aquatic animals.
The number of sperms and eggs produced is comparatively less	The number of sperms and eggs produced is more in comparison to internal fertilization.
Example: Human beings, Birds	Example: Fishes, Frogs

How is reproduction in mammals different from reproduction in amphibians? Give any two points of difference.