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Question : A thickened undergound stem X of a plant which is swollen with storred food has a number of points Y on its surface. When the old steam X is planted in the soil of a filed in the next growing seaosn, then each point Y present on its surface grows into a new plant. (a) What is the general name of the undergound stems like X? (b) Give one exampleof X (c) What are points Y present on Xknown as ? ltbr gt (d) Is it necessary to plant the whole of stem X in the ground to it new plants? Explain your answer (e) What is he name of this method of reprocuction of plants ? (f) What is the advantage of growing new plants from the underground stems like X? |
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