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Q.
In mollusca, eye is present over a stalk called
UP CPMTUP CPMT 2000
Solution:
The head of snail bears a pair of short, fleshy and stump-like optic stalks or ommatophores, one on either side behind 2nd pair of tentacles. Each ommatophore bears a small, black and somewhat circular eye, slightly below its tip on the outer side.