Science UPSC

Blood Circulatory System

[vc_row][vc_column][vc_column_text]  All animals and plants have specialized Systems for the exchange of food, gas, and emissions.  especially in animals, these systems are more developed. William Harvey was first discovered in The circulatory system. The Blood circulatory system exists in almost all animals in the world. In some animals, there is variation in the circulatory system, …

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