Examlex
Find the first term and the common difference for the arithmetic sequence. Round approximations to the nearest
hundredth.
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Pupil
The adjustable opening in the center of the eye that allows light to enter and reach the retina, varying in size to regulate the amount of light intake.
Lens
A piece of transparent substance, usually glass or plastic, that refracts or focuses light rays, used in optical devices like glasses or cameras.
Neural Impulses
Electrical signals that travel along neurons, facilitating communication within the nervous system.
Receptor Cells
Specialized cells that respond to specific kinds of energy, such as light, sound, or chemicals, and convert them into neural signals.
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