A) 4
B) 3
C) 2
D) 1
Correct Answer: C
Solution :
In the gut of cockroach, gizzard opens into the midgut through funnel like structure, called stomodeal valve. These are two in number. These allow (lie food to pass into midgut only. The cells of this valve form peritrophic membrane around the food.You need to login to perform this action.
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