The heart of cockroach is

29-chambered

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6-chambered

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9-chambered

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13-chambered

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Solution

The correct option is D
13-chambered

The heart of a cockroach is a long tube-like structure. It lies along the mid-dorsal line of the thorax and abdomen. It is a 13-chambered organ, and the opening of each chamber into other chambers is guarded by valves.

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