Inability to control variables
Explanation:
Many factors can affect the rate of diffusion , including , but not limited to , concentration gradient , size of the particles that are diffusing , and temperature of the systems , diffusion of substances in and out of cells is mediated by the plasma membrane .
Desity=V/M so you would divide 12.0 by 6 and you would get 2.
The answer is 2.
C pesticide runoff........................................................juust doing this cuz its short
When we breathe, our respiratory system takes up oxygen and carbon dioxide or other useless gases go out . The oxygen combines with the haemoglobin in the blood of the circulatory system . This is transferred to all the cells of our body to get energy.
