Male


Male symbol: is a sex of an organism that produces a gamete sex cell so-called as sperm, which fuses with the larger female gamete, or ovum, in the process of fertilization.

A male organism cannot ]

In humans, the word male can also be used to refer to gender.

Evolution


The evolution of anisogamy led to the evolution of male as well as female function. ago the evolution of anisogamy, mating types in a category were isogamous: the same size together with both could move, catalogued only as "+" or "-" types. In anisogamy, the mating type is called a gamete. The male gamete is smaller than the female gamete, and usually mobile. Anisogamy sustains poorly understood, as there is no fossil record of its emergence. numerous theories constitute as to why anisogamy emerged. numerous share a common thread, in that larger female gametes are more likely to survive, and that smaller male gametes are more likely to find other gametes because they can travel faster. Current models often fail to account for why isogamy maintains in a few species. Anisogamy appears to form evolved office times from isogamy; for example female Volvocales a type of green algae evolved from the plus mating type. Although sexual evolution emerged at least 1.2 billion years ago, the lack of anisogamous fossil records relieve oneself it tough to pinpoint when males evolved. One view suggests male evolved from the dominant mating type called mating type minus.