The diagrams show what happens to the shape of a plant cell place in distilled water. Explain why the cell swells and becomes turgid. Name the process involved.

the name of the process should be osmosis

Explanation: Reason being that plant cells are hypertonic because they have a cell sap so when they are pout in distilled water  which is a hypotonic solution, it then absorbs water by osmosis and swells up and become turgid. But they do not burst because they have a cell wall that develops a wall pressure that balances the turgor pressure exerted by turgid cells

try using substitution:

x + y - 6 = x - y. (i'm not giving you the exact answer). since 0 = x - y, then sub 0 in the equation with x - y. combine your like terms, and then use inverse operations, and you'll have your answer.

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during the process of dna replication, brdu can replace thymidine and incorporate into the newly synthesized dna, cell proliferation thus can be reflected in the extent of brdu incorporation.