Yes, They Do.
internal
internal
external
The 2 fertilisation's are external fertilisation, or internal fertilisation. External fertilisation is the type frogs do.
A toad goes through external fertilisation/fertilization
what two classes of vertebrates use external fertilisation
Yes, the frog uses external fertilisation because the frog lays eggs and then the male frog sprinkles jelly stuff on the eggs.
Yes
this is poo if it can t answer this question
internal is in and external is out fertilisation
Because - external fertilisation is 'left to chance'. There's no guarantee that every egg laid will be fertilised by sperm. Internal fertilisation is much more successful.
fertilisation