A) presence of cuticle in the gigsand
B) peritrophic membrane in masenthon
C) stomodael wall
D) rectal papiilae
Correct Answer: D
Solution :
Rectal papillae are 6 longitudinal folds found in inner wall of rectum. These rectal papillae help in conservation of water in cockroach.You need to login to perform this action.
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