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A good choice for the number of class groups to use in constructing frequency distribution is to have at least 5 but no more than 15 class groups.
Testosterone
A steroid hormone produced mainly in the testes, responsible for the development of male secondary sexual characteristics.
Spermatogenesis
The process by which sperm cells are produced and developed, typically in the seminiferous tubules of the testes.
FSH Secretion
The release of Follicle-Stimulating Hormone by the anterior pituitary, essential for reproductive processes such as the development of eggs in ovaries and sperm production.
Menstrual Cycle
The monthly cycle of changes in the ovaries and the lining of the uterus, leading up to menstruation.
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