Examlex
How does metal content vary between Population I and II? Why?
Androgens
A group of hormones that play a role in male traits and reproductive activity; includes testosterone.
Testes
The male reproductive glands that produce sperm and hormones, including testosterone.
Circadian Rhythms
Biological processes that follow a roughly 24-hour cycle, influencing physiological and behavioral changes in living organisms.
Puberty
The period of life at which one becomes functionally capable of reproduction.
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