Abiotic: non-living factors in an ecosystem.

Autotroph: another name for a producer.

Biogeography: the study of the distribution of animals and plants, their physical processes, and their spatial patterns.

Biome: geographic area that is similar.

Biotic: living factors in an ecosystem.

Carnivores: animals that eat other animals.

Community: all the populations that live together in an ecosystem.

Consumers: organisms that eat other organisms to obtain energy.

Decomposer: organisms that eat dead matter.

Ecology: the study of how the living and nonliving things in an ecosystem affect each other

Ecosystem: a certain place and its living and nonliving things

Habitat: the environment in which an organism lives.

Herbivores: animals that eat plants.

Heterotroph: another name for a consumer.

Limiting Factor: abiotic factor in an ecosystem that prevent organisms from flourishing either because there is too much or too little of it.

Nutrients: proteins, minerals and carbohydrates life needs to sustain itself.

Omnivores: animals that eat both plants and animals.

Organic matter: remains of once living creatures.

pH: measure of the acidity of water.

Population: composed of organisms that all belong to the same species.

Producers: organisms that can produce their own energy.

Topography: Shape of surface land.