A network of neural cells called neurons helps the human body communicate with itself. These neurons require a very specific concentration of sodium and potassium inside and outside of their cells. In order to maintain this balance a protein, which uses energy, works to pump these ions against the concentration gradient. What is this process called? A. Passive transport
B: Facilitated diffusion
C: Active transport
D: Osmosis

true is the

the answer would be..

b. sucking

emerging idea only occurs as a raw idea that could appear out of nowhere. meanwhile, to reach scientific consensus , that idea must be structured and tested over and over again through various experiments. the scientific consensus transforms the raw idea into idea that is more reliable through the process of scientific elimination.

d. planting trees

the trees take in carbon to make oxygen.