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प्रश्न
Analogy
Lungs: Respiratory system:: _______: Circulatory system.
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उत्तर
Lungs: Respiratory system:: heart: Circulatory system.
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संबंधित प्रश्न
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In human body, heart is located on the _____ side of the chest cavity.
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(iv) Name the valve found at the beginning of the part labeled 3.
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