Select the correct option with respect to cockroaches.
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a
Crop of cockroach is a sac like structure and useful for grinding the food.
b
Hepatic caeca of cockroach secrete digestive juice.
c
The entire midgut of cockroach is lined by cuticle.
d
In cockroach Malpighian tubules are present at the junction of foregut and midgut.
answer is B.
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Detailed Solution
Hepatic caeca are present at the junction of foregut and midgut and secrete digestive juice. Crop is sac like structure which stores but do not grind the food. Midgut is not lined by cuticle, only foregut and hindgut are lined by cuticle. Malpighian tubules are at the junction of midgut and hindgut.