Which landform is highlighted in the image?
the image shows the extent of a major landform. the
landform highlighted in red has high elevation and high relief,
hills
mountains
plains
plateau

the cell cycle is the final answer! : )

many other transport proteins, often called pumps, move materials against a concentration gradient. active transport drives molecules across a membrane from a region of lower concentration to a region of higher concentration. this process, shown in figure 5.1, uses transport proteins powered by chemi- cal energy.