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Primary sexual characteristics are the organs that are specifically required for reproduction. During puberty, these characteristics develop and mature. Examples include the uterus and ovaries in females, and the testes in males.

Primary Sexual Characteristics

Gonadarche refers to the maturing of the sex glands during puberty.

Gonadarche

Menarche is the term for the first menstrual period in females, marking a key milestone in puberty. It typically occurs around the ages of 12 to 13.

Menarche

Spermarche is the term for the first ejaculation in males, a significant event during puberty. This milestone typically occurs around the ages of 13 to 14.

Spermarche

During the physical changes of puberty, some developments are directly necessary for the biological process of reproduction. Which of the following options lists *only* the types of changes that fall into this category?

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