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State the reasons why a cockroach live...

State the reasons why a cockroach lives for a few days after its head is removed from its body.

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1. A cockroach can live for a week without its head. Due to their open circulatory system, and the fact that they breathe through little holes on each of their body segments, since they are not dependent on the mouth or head to breathe.
3. Bartholin's duck or duct of Rivinis.
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