Hemoglobin is a / हीमोग्लोबिन एक है

(a)protein / प्रोटीन
(b)carbohydrate / कार्बोहाइड्रेट
(c)fat / वसा
(d)vitamin / विटामिन

 

Answer/ उत्तर  : – protein / प्रोटीन

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