Ecosystems - Staff Portal Camas School...
Transcript of Ecosystems - Staff Portal Camas School...
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Ecosystems
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Organism
• an individual animal, plant, or single-celled
life form
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Population
• a community of animals or plants among
whose members interbreeding occurs.
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community
• a group of interdependent organisms of
different species growing or living together
in a specified habitat
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What is an ecosystem?
• Ecosystem is a system of living
things that interact with each
other and with the physical world.
• A Biome is a collection of related
ecosystems.
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Main Ecosystems:
• Desert
• Rainforest
• Ocean
• Taiga
• Tundra
• Chaparral
• Grassland
• Temperate
Forrest
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Green:Grassland Purple: Taiga Orange:Tundra
Black:Temperate Forrest Yellow:Desert
Brown:Chapparal White:Ocean
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However……..
• An ecosystem can be as large as the
Sahara Desert, or as small as a
puddle!!!
• Ecosystems are more than just the
organisms they contain.
Geography,weather,climate and
geologic factors also influence the
interactions within an ecosystem.
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Abiotic Factors
Are nonliving physical factors of an
environment.
include amount of water and oxygen,
temperature, amount of sunlight and water
pressure.
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Biotic Factors
• Are the living, physical factors of an
environment.
• Examples are parasitism, disease and
predation.
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Balance
Ecosystems will fail if they do not remain in balance.
No community can carry more organisms than its food, water and shelter can accommodate.
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How do they stay balanced?
To succeed in an ecosystem, plants
and animals have special structures
and behaviors called adaptations.
Ex) Chameleon
Polar Bear
Can you think of more examples of
adaptation?
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This powerpoint was kindly donated to
www.worldofteaching.com
http://www.worldofteaching.com is home to over a
thousand powerpoints submitted by teachers. This is a
completely free site and requires no registration. Please
visit and I hope it will help in your teaching.