Examlex
The group of biological molecules that are most diverse in function is:
Caffeine
A stimulant drug found in coffee, tea, cola, and chocolate that affects the central nervous system.
Depressant Drug
A substance that reduces the functioning of the nervous system, often used to induce calming or sleep-inducing effects.
Central-Nervous-System Activity
The integrated activities within the brain and spinal cord that regulate bodily functions and respond to internal and external stimuli.
Alcoholism
Disorder that involves long-term, repeated, uncontrolled, compulsive, and excessive use of alcoholic beverages and that impairs the drinker’s health and social relationships.
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