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![Describe the process of double circulation in human beings with the help of a diagram. Why is double circulation necessary? Describe the process of double circulation in human beings with the help of a diagram. Why is double circulation necessary?](https://search-static.byjusweb.com/question-images/byjus/uploads/2/6/3/0/26307509/6887923.jpg)
Describe the process of double circulation in human beings with the help of a diagram. Why is double circulation necessary?
![diagrams explaining the double circulatory system of heart and lungs in humans mammals advantages gcse biology exam revision notes igcse ks3 science AQA Edexcel OCR Gateway 21st Century suite US grade 6 diagrams explaining the double circulatory system of heart and lungs in humans mammals advantages gcse biology exam revision notes igcse ks3 science AQA Edexcel OCR Gateway 21st Century suite US grade 6](https://www.docbrown.info/ebiology/ebiopics/circulation03.gif)