Biology
When the concentration of water and solutes on either side of the cell membrane is same, the solution is said to be

Hypotonic
Isotonic
None of these
Hypertonic

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Biology
The main function of the inner bark of a woody plant is to

Protect the plant from herbivorous animals
Transport minerals and water from the roots to the leaves
Act as a membrane impermeable to water and gas
Transport food from the leaves to the other parts of the plant

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