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Ever since Darwin, systematics has tried to
Irregular Ovulation
A condition characterized by unpredictable or infrequent release of an egg from the ovary, affecting fertility and menstrual cycles.
Parental Age
refers to the age of a child's parents, which can influence various health and developmental outcomes for the child.
Dizygotic Twins
Also known as fraternal twins, they are siblings born at the same time who have developed from two different eggs fertilized by two different sperm.
Monozygotic Twins
Twins that are genetically identical, arising from a single fertilized egg that splits into two embryos.
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