Sexual reproduction : The creation of a new living organism using 2 cells (egg, sperm). Each cell comes from an individual parent.
Autogamy: An individual that can undergo autogamy can fertilize itself. Known as hermaphrodites, these creatures have fully functioning male and female sex organs. Many plants are hermaphrodites.
Allogamy: In allogamy, the female gamete (usually called an egg or ovum) comes from one individual and the male gamete (usually called the sperm) comes from a different individual. The gametes then fuse together during fertilization to create the zygote.
Internal Fertilization: Internal fertilization is when the male gamete and the female gamete fuse to undergo fertilization while the ovum is still inside of the female. This usually requires some sort of sexual intercourse to happen between a male and a female. The sperm is deposited into the female reproductive system and the zygote is formed inside the female.
External Fertilization: External fertilization is when the male gamete and female gamete fuse outside of the body. Most species that live in water and many types of plants will undergo external fertilization. The female will lay usually many eggs in the water and a male will come along and spray their sperm over the top of the eggs to fertilize them. Usually, the parents do not incubate the fertilized eggs or watch over them and the new zygotes are left to fend for themselves.
Autogamy: An individual that can undergo autogamy can fertilize itself. Known as hermaphrodites, these creatures have fully functioning male and female sex organs. Many plants are hermaphrodites.
Allogamy: In allogamy, the female gamete (usually called an egg or ovum) comes from one individual and the male gamete (usually called the sperm) comes from a different individual. The gametes then fuse together during fertilization to create the zygote.
Internal Fertilization: Internal fertilization is when the male gamete and the female gamete fuse to undergo fertilization while the ovum is still inside of the female. This usually requires some sort of sexual intercourse to happen between a male and a female. The sperm is deposited into the female reproductive system and the zygote is formed inside the female.
External Fertilization: External fertilization is when the male gamete and female gamete fuse outside of the body. Most species that live in water and many types of plants will undergo external fertilization. The female will lay usually many eggs in the water and a male will come along and spray their sperm over the top of the eggs to fertilize them. Usually, the parents do not incubate the fertilized eggs or watch over them and the new zygotes are left to fend for themselves.