Read the scientific question below. "is air pollution related to lichen growth? " what is a likely hypothesis for the question? air pollution must affect lichen growth. no, air pollution does not affect lichen growth. if air pollution is high, then lichen growth is high. if air pollution is high, then lung disorder cases are high.

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.