Transcript No Slide Title

Levels of Organization in Ecology
Ecology is . . .
http://www.phschool.com/science/ca_sci_exp_transparencies/earth_sci_unit5.pdf
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
Yuh know me;
I keep it homeostatic.
• An organism has all
the characteristics of
life.
Levels of Organization in Ecology
Hey Marty, tell
those two to keep
their interaction
PG.
• A population is group
of interacting and
interbreeding organisms.
• Members of a
population must be all
the same species.
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