1
Needs and Ecosystems
The Biosphere
The biosphere is the collection of ecosystems found on
the earth, including aquatic and terrestrial ecosystems.
The Biosphere
Environment
- that which surrounds.
Ecology - the relationship of organisms to their
environment
Ecosystem - the living organisms and the surrounding
environment with which they interact.
Community - all the living organisms in an ecosystem.
Population - a group of one species.
Terminology
Biotic
- living things
Abiotic
- non living things
Detritus
- Dead plant and animal
materials
Organic
- Carbon based materials
that make up or are produced by
living organisms.
Inorganic
- Materials apart from
living organisms
Autotrophy
-
self
feeding -
produce organic from inorganic
(plants)
Heterotrophy
- feeding on
other
sources of organic matter
(animals, fungi)
Decomposition
- conversion of
organic materials to inorganic.
Inorganic and Organic
Inorganic
Oxygen
Carbon dioxide
Nitrogen
Water
pH
Organic
All living things
Products of living
things
Energy and Carbon Movement
through ecosystems
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- Fall '11
- HOPKINS
- Carbon Movement
-
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