Ecosystems

What is an ecosystem?

• A group of animals that are the same species.
• Soil, water, air and sunlight
• All the living and non living things that interact in an area.
• North America

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

The study of interactions in an ecosystem.

• ecology
• philosophy
• scientology
• biology

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

• threatened species
• population
• community
• limiting factor

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

Ecosystems are  _____________.

• always changing
• always balanced
• never changing
• never balanced

Decomposers get their food by __________.

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