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Question

Write one function each of the following five parts of eyeball of human eye: (a) Cornea, (b) Lens, (c) Retina, (d) Choroid, (e) Iris.

WBBSE Class X Life Science 01 (d) Nervous System 05 Mark 2025

Answer

Parts Functions
(a) Cornea Refracts light rays entering the eye.
(b) Lens Focuses image on retina by changing curvature.
(c) Retina Contains rods/cones forming inverted image.
(d) Choroid Absorbs stray light, nourishes retina.
(e) Iris Controls pupil size for light entry.

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