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The definition in your first paragraph doesn't match your understanding in the second. If osmotic pressure is high in "A" relative to "B", you would have to apply a physical pressure to "A" to prevent solvent moving from B to A. If there is no such pressure applied, then solvent does move from B to A. The osmotic pressure and physical pressure are separate ...
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The second paragraph in the question describes two solutions separated by a semipermeable membrane (a membrane that allows water through, but not anything dissolved in the water). As it says, in those conditions, water will move from the section with low osmotic pressure to the solution with high osmotic pressure.
Osmotic pressure, like other colligative ...
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They are actually completely different plant parts: a taproot is the central root of a taproot-system plant while a tuber is an engorged modified underground stem called a rhizome.
A morphological and functional difference between rhizomes and roots are that rhizomes (being modified stems) have nodes, while roots never do.
Note: a node = the location on a ...
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