Levels of Organization in Ecology

http://www.phschool.com/science/ca_sci_exp_transparencies/earth_sci_unit5.pdf

Ecology is . . .

Levels of Organization in Ecology

• The Biosphere the thin layer of the earth that supports life.

• If the earth was the size of an apple, the biosphere would be the thickness of its skin.

Levels of Organization in Ecology

• An organism has all the characteristics of life.

Yuh know me; I keep it homeostatic.

Levels of Organization in Ecology

• A population is group of interacting and interbreeding organisms.

• Members of a population must be all the same species.

Hey Marty, tell those two to keep their interaction PG.

Levels of Organization in Ecology

• A community is a group of interacting populations.

Is he trying to tell me something?

Levels of Organization in Ecology

• A community includes all the living things (biotic factors) in one place.

• It contains no abiotic factors.

Levels of Organization in Ecology

• An ecosystem is a community plus its non-living (abiotic) environment.

Biotic Factor

Abiotic Factor

Levels of Organization in Ecology

http://www.phschool.com/science/ca_sci_exp_transparencies/earth_sci_unit5.pdf