Experts can i have the answer for the 12 th question before 'OR'

Dear student, 

Ans 12. (c) ‚ÄčIn cockroach,  each of their eye is composed of ommatidia( a large number of independent visual units) which are then connected to the optic nerve.It provides the mosaic vision to the cockroach. Now, here,since cockroach is nocturnal organism, the pigments separating ommatidia are not retractable and this gives it advantage to catch its prey.Therefore, the mosaic vision in cockroach is said to be nocturnal vision.


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