Examlex
Identify and describe the four Earth systems.
Hormonal Control
Hormonal control involves the regulation of bodily functions through the secretion and action of hormones, which are chemical messengers produced by endocrine glands.
Testosterone
A steroid hormone predominantly produced in males that plays key roles in muscle and bone mass development, and the production of sperm.
Progesterone
A female sex hormone that dominates the latter phase of the female cycle during which the uterine walls thicken to receive the embryo.
Biological Motives
Fundamental needs driving behavior, such as hunger, thirst, and the need for sleep, rooted in biological survival.
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