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  4. In Periplaneta americana, the number of Malpighian tubules are

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Q. In Periplaneta americana, the number of Malpighian tubules are

NTA AbhyasNTA Abhyas 2020Structural Organisation in Animals

Solution:

Excretory system of Cockroach
-Cockroach is uricotelic.
-Following are the components of excretory system in the cockroach:
1. Malpighian tubules (most important)
-These extract water and nitrogenous waste from the haemolymph, convert into uric acid and excrete
Intothe hindgut.
2. Fat bodies
3. Nephrocytes
4. Uricose glands.