Organism that makes its own food

Organism that eats other living things

Shows all pathways of energy and matter moving through the ecosystem

Shows the pathway of energy and matter from one organism to another organism

Eats all types of organisms- producers and consumers (autotrophs and heterotrophs)

Eats only plants- producers (autotrophs)

Eats only other organisms- consumers (heterotrophs)

Breaks down dead organisms into simple parts (molecules)

Each step in a food chain or food web

Usable power

States that energy cannot be created or destroyed but it can change form

A Material substance that occupies space and has mass

States that matter cannot be created or destroyed

an environmental factor that tends to limit population size

An organism that can interbreed with each other and produce fertile offspring

All of the living (biotic) and nonliving (abiotic) factors in an environment

All living species in an ecosystem

A group of one type of species in an area

The broadest, most inclusive level of organization includes the thin layer of earth and the atmosphere that supports life

the total mass of organisms in a given area

The maximum population size and ecosystem can support