What is the graphical representation is the amount of energy or matter in an ecosystem

What are two ways in which waves erode the land?

Melting glaciers is a serious threat to the environment what is the possible consequence of melting glaciers on polar bears?

Study the picture of the ocean. which is the best example of an organism’s niche shown in the picture? a. the environment contains several of the same species of coral. b. the shallow area of the ocean meets the needs of the coral and the fish. c. the ocean has fish and coral that live in the same area. d. the coral take in food from the water and provide shelter for the fish.