The diagram shows an arctic food chain. (i attached it)
question: which link on the arctic food chain contains the fewest number of organisms?
options:
a- phytoplankton
b- capelin
c- harbor seal
d- polar bea

Most animal cell membranes have proteins that pump. ions out of the cell and potassium ions into this

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.

Physical characteristics of down syndrome