gas exchange, G___ _______ is the process of exchanging gases between an organism and its environment., respiration, In animals, gas exchange occurs during r____________., oxygen, Animals take o_______ into their bodies and release carbon dioxide., photosynthesis, In plants, gas exchange occurs during both respiration and p___________, stomata, Gas exchange mainly occurs through s______ in plants., lungs, In human, gas exchange occurs in the l_____.

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