The 8 characeteristics of life are listed below. use the list to develop an argument supported by evidence for the question: are viruses alive? why or why not?
made of cells
reproduction
metabolism
homeostasis
heredity
responsiveness
growth and development
evolution

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.

What problem would a person most likely have if her kidney did not work correctly?

Do plant cells perform cellular respiration?