Fertilization of eggs in butterfly reproduction occurs during a vigorous mating ritual. The female butterfly then lays and abandons her eggs.
They use internal fertilisation.
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.
the tigers
internal
External
They use internal fertilisation.
Like all mammals, elephants employ internal fertilisation.
Fertilization occurs when a sperm cell and an ovum fuse, resulting in a fertilized egg.
Platypus fertilisation occurs internally.
To make sure fertilisation occurs
fertilisation occurs in the fallopian tubes
A zygote is the cell produced when a sperm and egg join (fertilisation). This usually occurs in the fallopian tube.
The 2 fertilisation's are external fertilisation, or internal fertilisation. External fertilisation is the type frogs do.
The cell created by fertilisation is called a zygote.
Fertilization occurs when a sperm and egg fuse together during reproduction. The stage that the fertilized egg is termed an embryo occurs about 1 day after conception.
In humans and mice fertilisation is internal and the chance of fertilisation is more.But in frogs and those which lay eggs externally,the chance of fertilisation is less since they are prone to destruction.Inorder for their survival,they lay more no. of eggs than needed
Fetilization in plants occurs in the ovary; here the male sperm (from the pollen grain) fuses with the ovule