Examlex
Andrew is currently in grade 9 and does not do well in school but manages to keep passing into the next grade. Which of the following terms best reflects his progress through school to grade 9?
Trichromatic Color Theory
A theory explaining human color vision based on the existence of three types of cones in the eye, each sensitive to red, green, or blue light.
Cones
Photoreceptor cells in the retina of the eye that function best in relatively bright light and enable the perception of colors.
Electromagnetic Spectrum
The range of all types of electromagnetic radiation, from radio waves to gamma rays, including visible light.
Nanometers
A unit of length in the metric system, equal to one billionth of a meter, commonly used to measure wavelengths of light and the scale of atoms and molecules.
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