Lens focuses light rays on the retina.
Further Explanation:
The eye is the sensory organ of the organism that allows it to see the object.
The eye consist of various part:
1. Sclera-Outer covering of the eyeball is tough and has white layer called as sclera
2. Cornea-The light enters the eye through it. It is the curved layer in front of iris and pupil.
3. Pupil-It controls the amount of light entering into the eye
4. Iris-it surrounds the pupil and regulates the amount of light passing into the eyes.
5. Lens-It sits behind the iris. It focusses light onto the retina.
6. Retina-It comprises of photoreceptors and blood vessel that nourishes the former. The two main types of photoreceptor:
a. Rods: It is responsible for night vision and are more sensitive to light.
b. Cones: It is responsible for color vision.
The eyeball is basically divided into two regions which are filled by the fluid. The two type of fluid found are
1. Aqueous humor: Is present across the space separating cornea and the lens.
2. Vitreous humor: Is present across the space separating the lens and the retina.
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Answer detail:
Grade detail: Middle school
Subject: Biology
Chapter: The sensory organ
Keywords:
Retina, sensory organ, eye, sclera, cornea, pupil, lens, rods, cones, aqueous humor, vitreous humor, light rays.
