Feb 5, 2026
How many sexes are there
Biologically, scientists most commonly define sex by reproductive role—who produces small, mobile gametes (sperm) and who produces large, nutrient-rich gametes (ova)—which yields two sexes, male and f...
Biological Sex
The classification of organisms as male or female based on physical and physiological characteristics.
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2 resultsJan 15, 2026
What are the medical and scientific definitions of biological sex and gender identity?
Medical and scientific literature distinguishes biological sex — a set of physical, genetic and reproductive characteristics — from gender identity — a person’s internal sense of being a man, woman, b...