Explain how the processes of diffusion, passive transport, and active transport occur and why are they important to cells

While active transport requires energy and work, passive transport does not. There are several different types of this easy movement of molecules. ... The membrane proteins then grab one molecule and shift their position to bring the molecule into the cell

Ibelieve its b but u might have to

An ecosystem is in a certain area and includes living and non living plus there is weather conditions and a biome is a large amount of area with similar climate.so ecosystem is based on weather and biome is based on the average climate