Examlex
________ are three-dimensional proteins on the surface of the dendrites or certain cells of the muscles and glands that are shaped to fit only certain neurotransmitters.
Electromagnetic Spectrum
The range of all types of electromagnetic radiation, which includes, among others, radio waves, microwaves, infrared, visible light, ultraviolet, X-rays, and gamma rays.
Fovea
A small depression in the retina of the eye where visual acuity is highest, due to the dense concentration of cones.
Periphery
The outer limits or edge of an area or object, often used to describe locations that are marginal or less central.
Thickness
A measurement of an object's dimension from one side to another, indicating how wide or deep the object is.
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