veins in a leaf have double pipeline full explanation
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The veins of a leaf have double pipeline tubes because they consists of xylem and phloem which help in the transportation of water and food respectively. ... Cactus can make food without leaves because it has modified leaves in the form of spikes which contain chlorophyll and make food by the process of photosynthesis.
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The veins in a leaf have double pipeline tubes because they consists of xylem and phloem which help in the transportation of water nd food respectively. The leaves which are green, are so because they contain a green coloured pigment called chlorophyll.
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