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प्रश्न
In which of the following vertebrate group/groups, heart does not pump oxygenated blood to different parts of the body?
विकल्प
pisces and amphibians
amphibians and reptiles
amphibians only
pisces only
MCQ
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उत्तर
pisces only
Explanation:
In Pisces (fishes), the heart pumps only deoxygenated blood to the gills. The oxygenated blood from the gills goes directly to the body without returning to the heart. Therefore, the heart does not pump oxygenated blood to different parts of the body.
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