NEETBiologyStructural Organisation in AnimalsMCQ+4 / −1
Select the correct option with respect to
Cockroaches :-
- ANervous system comprises of a dorsal nerve cord and ten pairs of ganglion
- BThe fore wings are tegmina which are used in flight
- CMalpighian tubules convert nitrogenous wastes into urea
- DMales bear short and styles not present in females
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Correct answer: D
Malpighian tubules are the main excretory structures in cockroach. They extract nitrogenous wastes and water from haemolymph and reabsorb certain salts resulting in precipitation of uric acid. So, cockroach is uricotelic. Males have paired anal styles on 9th abdominal sternite which are absent in females.
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