The water cycle is important for recycling the water on Earth. Which

of these is the source of most of the water vapor in Earth's

atmosphere?

Select one

ocean evaporation

O

river flooding

O

glacier melting

O

plant transpiration

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.