Examlex
The World Health Organization estimates that __________ of children worldwide have diets that are deficient in protein.
Hormones
Chemical messengers produced by glands in the body, which regulate physiological activities and maintain homeostasis.
Neurotransmitters
Chemicals that transmit signals across a synapse from one neuron to another neuron, muscle cell, or gland cell.
Body Processes
Various physiological and biological functions carried out by an organism to maintain life, including respiration, digestion, and circulation.
Exocrine Glands
Glands that secrete their products through ducts either onto an external surface or into an internal space, unlike endocrine glands which secrete hormones directly into the bloodstream.
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