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How many chambers are present in the heart of a cockroach?(a) Twelve(b) Ten(c) Sixteen(d) ThirteenI got this question in an interview for internship.This intriguing question originated from Animals topic in chapter Structural Organisations in Animals of Biology – Class 11

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Right choice is (d) THIRTEEN

To explain I would say: The heart of cockroach CONSISTS of an elongated muscular tube lying ALONG the mid-dorsal line of thorax and abdomen. It is DIFFERENTIATED into thirteen funnel – SHAPED chambers with ostia on either side.



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