The stems and branches of most big plants and trees are very soft.
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1) Trees are tall and big plants with hard and thick woody stem.
2) The tree have one main stem called 'trunk' which usually gives out branches and leaves. 3) The trees are very big in size.
2) The tree have one main stem called 'trunk' which usually gives out branches and leaves. 3) The trees are very big in size.
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As the osmotic pressure increses in plants the transpotation pressure increses and helps in transportation of food minerals and water from soil in higher plants and it maintains cool to the leaf surface
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