Draw labelled diagram of heart in cockroach and explain its physiology.
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It is probably the most loathed about insect ever present. But the fact remains that cockroaches have inhabited the earth for the past 300 million years and continue to be present on earth. Read along to know more about the external morphology and internal anatomy of a cockroach which belongs to the phylum Arthropoda. The common cockroach is scientifically known by the name Periplaneta americana.
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Cockroach. It is probably the most loathed about insect ever present. But the fact remains that cockroaches have inhabited the earth .
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