Examlex
Using techniques similar to those employed by the Drake equation,estimate the number of "A" grades given out at your institution this semester.
Receptors
Specialized cells or proteins in the body that bind to specific molecules like hormones, neurotransmitters, or drugs, triggering a specific biological response.
Sensory Stimuli
External or internal events or factors that can be perceived by the senses, leading to physiological or psychological responses.
Sensation
The process by which our sensory receptors and nervous system receive and represent stimulus energies from our environment.
Visible Spectrum
The narrow band of light waves that are visible to the human eye.
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