Energy and Matter in Ecosystems

model that links organisms by their feeding relationships

model that shows the complex network of feeding relationships within an ecosystem

total dry mass of all organisms in a given area

a diagram that compares energy used by producers

a diagram that compares the biomass of different trophic levels within an ecosystem

a diagram that shows the number of individual organisms at each trophic level in an ecosystem

relating to feeding and nutrition.

any location where cycling matter is stored

a nonrenewable energy source formed from the remains of organisms that lived long ago

(plants) an organism that produces organic compounds from simple substances such as sunlight, water, and carbon dioxide; an autotroph.

organisms that eat producers—plants or algae—and nothing else.

organisms that eats primary consumers

organisms that eats primary and secondary consumers

living things that get energy by eating dead animals and plants and breaking down wastes of other animals