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OpenStudy (anonymous):
Explain why plants require oxygen as well as carbon dioxide.
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OpenStudy (abb0t):
oxygen used for cellular respiration, while the carbon dioxide is a by-product which is used to store as a source of energy for use and storage.
OpenStudy (anonymous):
because they need carbon dioxide for the process of photosysthesis and oxygen for respration in the night
OpenStudy (abb0t):
Or becuase they're greedy! :)
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