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Ecology
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Ecology is study of interactions between
non-living components (abiotic factors) in the environment…light waterwindnutrients in soilheatsolar radiationatmosphere, etc.
AND…
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Living organisms (biotic factors)…PlantsAnimalsmicroorganisms in soil, etc.
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Organism
An organism is any single living creature.
Organism can be single celled or made up of many cells working together.
•Plants•Animals
•Fungi•Protista•Bacteria
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Populations
All the organisms in an ecosystem that belong to the same species
They must be able to interbreed with
each other!
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Community A community is all the
populations of different species that live in an ecosystem.
Community ONLY consists of living
organisms!
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Community
Community ofAfrican savannahs
Community of African grasslands
Community offarm animals
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Ecosystem
All the organisms living in an area and the nonliving features of their environment
Living (biotic) and nonliving
(abiotic)
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Biomes
Biomes are regions of the world with similar climate (weather, temperature) animals and plants.
Consist of living and nonliving
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Biomes
Tundra
Desert
Rain Forest
Tiaga
Grasslands
Ocean
Temperate Forest
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Biosphere
The biosphere is defined as the sphere or area around the planet Earth where life exists.
OUR LIVING WORLD
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They ALL relate to each
other!
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ENERGY flowing through anE C O S Y S T E Mcreates a simple
FOOD CHAINdiagram.
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Food chains – arrows show the direction of energy flow.
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Relationships
The relationships between organisms in an ecosystem can be shown by a food web.