The photo-receptors in the eye are present in___________?
Correct answer: D. Retina
- A. Cornea
- B. Sclera
- C. Iris
- D. Retina
Explanation
Photoreceptors, namely rods and cones, are light-sensitive cells located in the retina. The cornea and lens focus light, while the iris controls how much light enters.
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The human body is studied through its organ systems, including digestion, respiration, circulation, excretion, nervous coordination, reproduction and immunity. Coverage also includes nutrients and deficiency diseases, hormones, blood groups, common infections, vaccines, sanitation and basic first aid, while distinguishing communicable diseases from inherited and lifestyle disorders.
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