In human females (or girls females (or girls), the ovaries start releasing ovum or egg i.e. the female gamete once every 28 day from the age of puberty.
Menarche: The first occurrence of menstruation (or periods) at puberty
Menopause: Menopause is the permanent stoppage of menstruation (or periods) in a woman is called menopause. Menopause occurs in women at the age of about 45 to 50 years.
Parthenogenesis is the process of development of an organism from an unfertilized egg, e.g., drones (male honey bees).
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