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प्रश्न
Haemoglobin is present in ______ cells.
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उत्तर
Haemoglobin is present in red blood cells.
Explanation:
Red blood cells contain haemoglobin, a protein that binds to oxygen and transports it from the lungs to the rest of the body.
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संबंधित प्रश्न
Explain ABO blood group system in human being with a suitable chart.
Given alongside is a diagram of human heart showing its internal structures. Label the parts marked 1 to 6, and answer the following questions.

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How do you account for the following difference?
The walls of the right ventricle are thicker than those of the right auricle.
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Draw the structure of human heart and label its parts
Complete the following sentence with appropriate word:
The membranous covering of the heart is _______.
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Analogy
Lungs: Respiratory system:: _______: Circulatory system.
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