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