Question

justify the following statements on the basis of external features 1 underground parts of a plant are not always roots​

Answer 1

yes .they aren't because some adventisious stem are also found underground.....

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Answer 2

Answer:

i. Underground parts of plant may bear stem like characters, e.g. in potato, stem gets modified into 'tuber' like structure for storage of reserve food material. These tubers develop and grow under the ground. These tubers show nodes and internodes, scale leaves.