offspring development outside of the body (any thing that lay eggs)
external - They develop externally in an egg.
the development of a fish can depend on different species of it
Reptiles and birds are among the major groups of vertebrates that have internal fertilization and external development. Also included are monotremes and marsupials.
I remember a really great explanation in an old biology textbook, but I no longer have it and I'm having trouble finding a good answer for you online. One big advantage is that because the offspring are carried inside the mother and not in eggs, they are mobile and the mother can protect them from predators.
the reproduction of frogs are external fertilization. By Crystal
External
its internal
External fertilization and development
Taiwan External Trade Development Council was created in 1970.
external - They develop externally in an egg.
you
External, because they lay eggs.
Taiwan External Trade Development Council's motto is 'Cooperation, Commitment, Concentration, Creativity'.
the development of a fish can depend on different species of it
internal
lll
external reproductive organs can be distinguished by the 12th week of development