(A) Choroids
(B) Sclerotic
(C) Retina
(D) Cornea
Answer: (C) Retina
Q. A thin circular structure in the eye, responsible for controlling the diameter and size of the pupil and define the color of an eye is:
(A) Retina
(B) Iris
(C) Cornea
(D) None of these
Answer: (B) Iris
Q. The opaque, fibrous, protective outer layer of an eye is known as:
(A) Retina
(B) Iris
(C) Cornea
(D) Sclera
Answer: (D) Sclera