it might last quiet a while
The 2 fertilisation's are external fertilisation, or internal fertilisation. External fertilisation is the type frogs do.
It depends when intercourse happens. Sperm can last up to 4 days in the slime of the cervix. An egg stays for about 12 hours after vulation. Then is dissolves.
fertilisation
external
They use internal fertilisation.
external because they can change over time.
Fertilisation of Orchids was created in 1877.
internal
fertilisation first
The 2 fertilisation's are external fertilisation which the frog does, or internal fertilisation.
For pollination (fertilisation) purposes. No fertilisation = No crop.
Yes