 A grouping of the same species in a certain area

 Using general characteristics of a small group to identify characteristics of a larger group

 Abiotic: Nonliving things or factors that can affect living organisms – temperature, rain, oceans…  Biotic: Living organisms or factors – plants, animals

 A key used to identify a species by its traits

 A level at which a species feeds

 Autotrophs: Species that make or produce their own food – plants, algae  Heterotrophs: Organisms that feed at multiple trophic levels – animals, fungi Oh my gosh I’m a heterotroph!

 Producers: The organisms that provide energy to an ecosystem  Consumers: Organisms that consume energy from other organisms

 Herbivores: Organisms that only eat plants  Carnivores: Organisms that only eat meat  Omnivores: Organisms that eat meats and plants

 Organisms responsible for returning nutrients to the ecosystem – bacteria, fungi, mold

 Display of specific energy transfers between organisms

 Shows all the possible food chains in an ecosystem

 Relationship between two organisms

 Commensalism: Form of symbiosis where one organism benefits and the other is neither benefited or harmed  Mutualism: Both organisms benefit  Parasitism: One organism benefits and the other is harmed