Each organism living in an ecosystem plays an important role in the flow of energy within the food web.The role of a bird is very different from that of a flower. But both are equally necessary to ...

Save guides, add subjects and pick up where you left off with your BBC account. All organisms in an ecosystem depend on each other. Food chains show the flow of energy from one organism to another ...

Save guides, add subjects and pick up where you left off with your BBC account. All organisms in an ecosystem depend on each other. Food chains show the flow of energy from one organism to another ...