This document defines key ecological terms: - Organism refers to living things that make up an ecosystem like kangaroos, humans, and trees. - Community is a group of organisms living together in a specific place, such as a group of people or coral reef. - Ecosystem describes the interactions between living and non-living things in an environment.

2.  Organism: the living things
which make up an
ecosystem.
 Examples:
◦ Kangaroos
◦ Humans
◦ Trees

3.  Community: A group of organisms living together
in a specific place.
 Examples:
◦ A group of people living together.

4.  Ecosystem: The interactions between living and
non-living things.
 Examples:
◦ Coral Reef
◦ Desert
◦ Forest

5. Arctic Environment
 Environment: The
surroundings or conditions
Wetland Environment
in which a person, animal
or plant lives and operates.
 Examples:
◦ Grassland Environment
◦ Wetland Environment
◦ Arctic Environment Grassland Environment

6.  Population: The amount of a certain organism in
a certain place.
 Examples:
◦ The amount of humans in a town.
The 2006 census reported
4119190 human residents in
Sydney.

7.  Biotic: organisms are the biotic factors of eco-
systems living things which make up an
ecosystem
 Examples:
◦ Humans
◦ Kangaroos
◦ Trees
◦ Plants
◦ Animals

8. Abiotic: non-living things in an eco-system
 Examples:
◦ Temperature
◦ Sunlight

9.  Habitat: A home for
organisms, where an
organism lives.

10. Distribution: Information on a where a species is
located.
Abundance: Information which tells us how many
of a particular species live in an area.