The given figure shows the digestive system o | vedclass

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(B) - Crop; $B$ - Gizzard; $C$ - Hepatic caecae; $D$ - Malpighian tubules.$1$. The crop is a large,sac-like structure used for storing food.$2$. The c

Vedclass · Accepted Answer

$A$-Crop,$B$-Gizzard,$C$-Hepatic caecae,$D$-Malpighian tubules

Vedclass · Answer

(B) - Crop; $B$ - Gizzard; $C$ - Hepatic caecae; $D$ - Malpighian tubules.$1$. The crop is a large,sac-like structure used for storing food.$2$. The crop is followed by the gizzard (proventriculus),which has thick circular muscles and an inner cuticle forming six highly chitinous plates called teeth,used for grinding food particles.$3$. At the junction of the foregut and midgut,a ring of $6-8$ blind tubules is present,called hepatic or gastric caecae,which secrete digestive juices.$4$. Malpighian tubules are yellow-colored,thin,filamentous structures located at the junction of the midgut and hindgut. They are the primary excretory organs that absorb nitrogenous wastes from the hemolymph and convert them into uric acid,which is then excreted through the hindgut.

The given figure shows the digestive system of a cockroach with a few structures marked as $A, B, C$ and $D$. Identify structures $A$ to $D$.

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