lululu5540 lululu5540

27-05-2018
Biology

contestada

The central portion of the retina is the __________.

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MsKayla MsKayla

29-05-2018

The entire retina contains about 7 million cones and 75 to 150 million rods. The optic disc, a part of the retina sometimes called "the blind spot" because it lacks photoreceptors, is located at the optic papilla, where the optic-nerve fibres leave the eye.

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