Examlex
The fact that our wants are unlimited but our resources are limited implies that
Blood Levels
Typically refers to the concentration of substances (such as glucose, hormones, or drugs) circulating within the bloodstream.
Endocrine Glands
Glands of the endocrine system that release hormones directly into the bloodstream to regulate various bodily functions.
Exocrine Glands
Exocrine glands are glands that release their secretions through ducts directly into external environments or body surfaces, such as sweat, salivary, and digestive glands.
Intracellular Receptors
Intracellular receptors are proteins located within cells that bind to certain substances and mediate changes in gene expression.
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