Ecosystems

A system made up of organisms interacting with one another

• biology
• abiotic
• biotic
• ecosystem

Organisms that make up the living part of an ecosystem.

• abiotic
• biotic factors
• ecology
• ecosystems

Nonliving things found in an ecosystem.

• factories
• factor trees
• biotic factors
• abiotic factors

A group of the same type of organisms living in the same place at the same time.

• threatened species
• populations
• community
• limiting factor

All of the populations that live in one area together

• limiting factors

• populations

• community

• speed limit

A species that is in danger of becoming extinct.

• Threatened species
• out of luck
• do do birds
• endangered species

Which is a biotic factor?

• sunlight
• air 
• bacteria
• all of the above

Deserts, mountains, and rivers are all examples of ________.

• vacation spots
• tundra
• ecosystems
• wetlands

Decomposers get their food by __________.

• making it themselves
• eating live organisms
• using dead organisms
• eating themselves

All the living and nonliving things in an area make up a/an

• community.

• ecosystem.

• population.

• environment.