In DIFFUSION AND FACILITATED DIFFUSION no energy is used. The one that needs a helper to get thing across is FACILITATED DIFFUSION.<span> Facilitated diffusion involves the diffusion of materials across the cell plasma membrane with the aid of membrane proteins such as carriers and channels. The process of diffusion does not need a carrier, the molecules to be transported just move on their own from the area of high concentration to the region of low concentration until the concentration in the space become uniform.</span>
Answer:
the process by which different kinds of living organisms are thought to have developed and diversified from earlier forms during the history of the earth.
Answer:
the flow in systems besides the flow.
Explanation:
The red and the blue parts of the visible spectrum are used by the plants for photosynthesis
