I am a scientist, I need someone to send me noods because i am studying human anatomy

What was darwins theory of common decent

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.

If a grape were placed in a hypertonic solution what would happen and why?