Choose the correct answer from the allternatives given.
Which of these are excretory organs in cockroach ?

Nephridia

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Malpighian tubules

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Haemocoel

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Solenocytes

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Solution

The correct option is B Malpighian tubules
The excretory organ of cockroach is the malpighian tubules. It is found at the junction of the midgut and hindgut and is about 150 in number. They are fine, yellow-colored and branched threads present in bundles. They lie freely in the hemolymph.
So, the correct option is 'Malpighian tubules'.

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