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While looking at the bottom surface of a leaf with a compound light microscope, a student notices pairs of cells with openings between them on the surface of the leaf. the main purpose of these openings and the cells that surround them is
1. removing excess sugars2. synthesis of carbon dioxide3. regulating gas exchange4. purification of water
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While looking at the bottom surface of a leaf with a compound light microscope, a student notices pa...
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