What is Oogamy?

Hint: The term Oogamy define as sexual reproduction consists of small motile male gamete along with large but less motile female gamete that occurs in all higher animals as well as some plants. Oogamy is a familiar form of heterogamy in which the female gamete that is egg cell is considered significantly larger than the male gamete as well as is non-motile.

Complete answer:
In Oogamy male gametes are typically and highly motile as well as are normally tasked with all of the travel essential to bring the respective gametes together. The prevalence of Oogamy in higher animals leads to the result that specialization of the gametes conclude in their functions of their respective tasks better as well as more efficiently than those functions that could be performed by generalist isogametes, particularly the capability to concentrate high-energy substances in a smaller number of ova.

Oogamy is seen to be the evolutionary step that leads to internal fertilization, and response to selective pressures at work to inspire this adaptation. This process has been most attributed to the independence of animals from liquid water as a way of fertilization among terrestrial species.

Note: Oogamy is principal process present in every type of animal, but the process can also be found in many protists, in a specific orders of algae as well as some plants such bryophytes, ferns, along with some gymnosperms such as cycads and ginkgo. In some algae, most gymnosperms along with all angiosperms, a variation of Oogamy occurs where the sperm cells are non-motile.