Why are swamps more productive than streams?

Here ya go

Explanation:

Swamps are more productive than a stream because currents are stronger in a stream. This makes the nutrients to pass by the plants and animals faster, so they can't get the nutrients as well also streams are less productive than swamps because swamps just like marshes have the highest primary production of all the world's ecosystems.

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.