3. A second burst of exposure to sex hormones occurs during a mini-puberty in the first six months of infancy. At puberty, follicle-stimulating hormone

(FSH) and luteinizing hormone (LH) promote the release of testosterone by the testes and estradiol by the ovaries, leading to the development of secondary sex characteristics, maturation of sperm, and regulation of the menstrual cycle. (LO1)