Female
An organism's sex is female (symbol: ♀) if it produces the ovum (egg cell), the type of gamete (sex cell) that fuses with the male gamete (sperm cell) during sexual reproduction.
In species that have males and females, sex-determination may be based on either sex chromosomes, or environmental conditions. Most female mammals, including female humans, have two X chromosomes. Female characteristics vary between different species, with some species having pronounced secondary female sex characteristics, such as the presence of pronounced mammary glands in mammals.
For any reasonable biological definition of female, an exception can be found. This makes female a fuzzy definition.
See Also
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