Transport of material into a cell against a concentration gradient, from low to high, requires A.
Water

B.
Energy

C.
Osmosis

D.
Diffusion

Use this information to determine the number of calends electrons in the atoms. which of the following correctly compares the stability of the two atoms? a) both are unreactive b) both are highly reactive c) a is unreactive and d is reactive d) a is reactive and d is unreactive