ECOLOGICAL RELATIONSHIPS

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• ECOLOGICAL RELATIONSHIPS

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Ecosystem Organization

• Every organism has a habitat where it lives and
  a niche which is its role or job in the ecosystem.

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Ecosystem Organization

• Organism is a single living thing.

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Ecosystem Organization

• Population is the number of individuals of the
  same species in the same place.

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Ecosystem Organization

• Community is all of the different populations
  living in a given area.

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Ecosystem Organization

• Ecosystem is all of the communities (biotic) and
  all of the physical factors (abiotic) in an area.

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Ecosystem Organization

• Biosphere is all of the areas on earth where
  organisms live.

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Ecological Relationships

• What is parasitism?
• What is mutualism?
• What is commensalism?
• What is predation?
• What is competition?

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Organism 1 Organism 2
Parasitism
Mutualism
Commensalism
Predation
Competition
Key (benefits) - (harmed) 0 (not affected)
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two organisms that live in close contact to each
other for long periods of time
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Ecological Relationships Lab

• A lichen is a relationship between a fungus and
  an algae. The fungus provides nutrients to the
  algae and the algae provides food for the fungus.
• The algae gets nutrients (benefits) and the
  fungus gets food (benefits)