The respiratory system is a biological system consisting of specific organs and structures used for gas exchange in animals and plants
श्वसन प्रणाली एक जैविक प्रणाली है जिसमें पशुओं और पौधों में गैस के आदान-प्रदान के लिए उपयोग किए जाने वाले विशिष्ट अंगों और संरचनाएं शामिल हैं
the weather channel Respiratory System IN HINDI श्वसन प्रणाली | |
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| Education | Upload TimePublished on 22 Mar 2018 |
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