Ecology
Is the scientific study of interactions of organisms with one another and with the physical and chemical environment.
Environment
The physical, biological, and chemical factors that affect an organism.
Ecosystem
A community (all living things) and the physical environment interacting & functioning together.
Species
A group of organisms capable of interbreeding and producing fertile offspring.
Habitat
The natural environment in which an organism lives.
Population
All members of a species in a given area.
Community
All populations in a given area that are dependent on one another.
Biome
A type of ecosystem that covers a particular region of Earth.
Biosphere
Includes many ecosystems, portion of the earth in which life exists.
Ecological Organization
Population ? Community ? Ecosystem ? Biosphere
Abiotic
The non-living, physical & chemical factors that affect organisms.
Limiting Factor
Determines the types of organisms that can exist in an environment.
Nutritional Relationships
Involves the transfer of nutrients from one organism to another within the ecosystem.
Autotrophs
Synthesize (make) their own food.
Heterotrophs
Can not synthesize their own food.
Saprophytes
Obtain nutrients from the remains of other organisms.
Herbivores
Feed on plants, Ex: Koala, Deer, "grazers
Carnivores
Consumes other animals.
Omnivores
Eat both plants and animals.
Symbiotic Relationships
A relationship that benefits at least one of the organism involved.