The main function of this structure is to regulate the amount of light entering the eyeball through the pupil.
A) retina
B) cornea
C) iris
D) choroid
E) tunic
Correct Answer:
Verified
Q11: The first step in visual transduction is
A)
Q12: Which of the following provide for the
Q13: Which of the following provide for the
Q14: Which of the following receptors is primarily
Q15: This structure protects the inner parts of
Q17: Which of the following is the transparent
Q18: Which of the following nerves serves in
Q19: Binocular vision
A) gives depth perception.
B) provides accurate
Q20: This structure lies between the lens and
Q21: Where is the sclera? 
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