What is the smallest unit of matter that has characteristic properties of its element?
atom
molecule
gas
compound
answer- atom

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The small molecule cyclic amp (camp) takes about 0.2 second to diffuse 10 μm, on average, in a cell. suppose that camp is produced near the plasma membrane on one end of the cell; how long will it take for this camp to diffuse through the cytosol and reach the opposite end of a very large cell, on average? assume that the cell is 200 μm in diameter.

Name the organism that belongs to the kingdom protista.