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Which of the following is the flattened portion of a leaf?
petiole
blade
vein

User Hisako
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1 Answer

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The blade is the flattened portion of the leaf. These expanded blades are called lamina which are attached to the plant stem by the petiole. They come in diverse shapes, sizes, and other characteristics. The other choices are just supporting structures of this structure of the plant.
User Dmatej
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