Correct Answer: Option D

Explanation

Cone cells, or cones, are one of two types of photo-receptor cells in the retina of the eye. They are responsible for color vision and function best in relatively bright light, as opposed to rod cells, which work better in dim light. Cone cells are densely packed in the fovea centralis, a 0.3 mm diameter rod-free area with very thin, densely packed cones which quickly reduce in number towards the periphery of the retina. There are about six to seven million cones in a human eye and are most concentrated towards the macula

There is an explanation video available below.

• Rhesus factor miscarriage? Answer this

  4 Answers   ·   Biology   ·   1 day ago
• Copper reacts with oxygen to form two oxides X and Y on analysis, 1.535g of X yielded 1.365g if copper... Answer this

  2 Answers   ·   6 years ago
• In electrovalency, the valence electrons are transferred and the atomic number is (a) Also stabilized (b) stabilized (c) unaffected (d)... Answer this

  3 Answers   ·   Chemistry   ·   18 hours ago