he hypothalamus and pituitary gland, which are in the brain, initiate puberty. The hypothalamus secretes luteinizing hormone-releasing hormone, which stimulates the pituitary to secrete luteinizing hormone and follicle-stimulating hormone. Luteinizing hormone causes the testes to produce testosterone. Follicle-stimulating hormone (plus testosterone) causes the testes to produce sperm. Testosterone is responsible for the development of secondary sex characteristics, features that stimulate male development (including characteristics that are not part of the reproductive system, such as facial hair growth and voice change).

Explanation:

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3 years ago

what is a chemical found in tobacco smoke that speeds up the activities of the nervous system, heart and other organs; it produc

schepotkina [342]

Nicotine is the addictive chemical in tobacco

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3 years ago

If you had an excellent score on the shoulder flexibility test A. You need to stretch your upper body more often B. You should s

Cerrena [4.2K]

B. The answer is B. Even with a high score, you should continue stretching to maintain or potentially improve your range motion.

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