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Iris does not
Solution:
The iris is the colored part of the eye that surrounds the pupil. Its primary functions include regulating the amount of light entering the eye by altering the size of the pupil. This is achieved by the contraction and relaxation of its circular (sphincter pupillae) and radial (dilator pupillae) muscles. The color of the iris is determined by the amount of melanin pigment present in it. Aqueous humour, a watery fluid that fills the space between the cornea and the lens, is secreted by the ciliary body, not the iris. Therefore, the statement that the iris does not secrete aqueous humour is correct.