Examlex
either give an example or prove that there are none.
-A simple digraph with indegrees 0, 1, 2 and outdegrees 0, 1, 2.
Eyeball
The organ of sight in humans and animals, allowing for vision through the process of light detection.
Rods
Photoreceptor cells in the retina of the eye that function in low light and are responsible for black-and-white vision.
Fovea
A minimal dip in the eye's retina where the clarity of vision is at its peak because it contains a large number of cones.
Color Vision
The ability of the human eye and brain to distinguish objects based on the wavelengths of the light they reflect, emit, or transmit.
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