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[1][2][3] during sexual reproduction, a male and a female gamete fuse to form a zygote, which develops into an offspring that inherits traits from each parent. “sex is a multifaceted trait that has some components that are present at birth and some components that developed during puberty, and each of these components shows variation,” says sam sharpe,. The national institutes of health defines biological sex (“assigned sex”) as “a multidimensional biological construct based on anatomy, physiology, genetics, and hormones,” also referred to by some as “sex traits.” all animals, including humans, have a sex. Biological sex is traditionally defined by gametes (sperm and egg), essential for direct reproduction
This definition is incomplete, as intersex conditions can be adaptive through kin selection. Sex, the sum of features by which members of species can be divided into two groups—male and female—that complement each other reproductively Sex, sexuality, and reproduction are all closely woven into the fabric of living things. Sex is a person's immutable biological classification as either male or female
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