However, in some species, such as certain plants, the same individual can produce both sperm and eggs, meaning a single individual can fertilize itself without needing to find and mate with another individual.
Do you have to a male and female fertile egg?
In order for a fertilized egg to develop into a new organism, it must be a zygote. A zygote is formed by the union of two gametes: a sperm and an egg. In most sexually reproducing species, the sperm and egg are produced by separate individuals, one male and one female.