Examlex
Which of the following is not a fundamental particle found in atoms?
Reflexes
are involuntary and nearly instantaneous movements in response to a stimulus as part of the body's defense mechanism.
Blood-Brain Barrier
Permeability barrier controlling the passage of most large-molecular compounds from the blood to the cerebrospinal fluid and brain tissue; consists of capillary endothelium and may include the astrocytes.
Caffeine
A stimulant found in coffee, tea, chocolate, and certain medications that can enhance alertness and reduce feelings of tiredness.
Glucose
A rudimentary sugar that's crucial for energy in life forms and is a piece of many carbohydrate mixtures.
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