Answer:
Active
Step-by-step explanation:
During active transport, substances move against the concentration gradient, from an area of low concentration to an area of high concentration. This process is “active” because it requires the use of energy.
The answer is Diffusion.
Diffusion is a movement of molecules(substances) from a region of high concentration to a region of low concentration down a concentration gradient.
3.6m questions
4.6m answers