Describe veins and structure of leaves of plants - rose, mint, neem, mango, spinach in a few lines
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•Veins are the vessels which carry carbon dioxide rich blood from all parts of the body back to the heart. they have thin walls. there are valves present in veins which allow blood to flow only towards the hearts.
sorry to say but i cannot describe the structure of leaves...
sorry to say but i cannot describe the structure of leaves...
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