If the sperm are not "healthy" or present in enough numbers they will will not have the ability to reach and female egg and then penetrate and fertilize then egg.
Yes
Otherwise , there would not be fertilisation! This is essential for reproduction.
Otherwise , there would not be fertilisation! This is essential for reproduction.
fertilisation
By the fertilisation of the ovum by sperm
The uniting is known as fertilisation of the egg by the sperm.
Quality , Quantity and Motility
That's called 'fertilisation'.
Conception or fertilisation are both terms applied to the fusing of sperm and egg.
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.
For pollination (fertilisation) purposes. No fertilisation = No crop.
Human fertilisation can take place at the oviduct where the ovum is being released and when the sperm swims towards it.After fertilisation,when the both sex cells fuses,the ovum will be moved to the uterus.