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Ecosystems 4   Dynamic Equilibrium And Feedback
Ecosystems 4   Dynamic Equilibrium And Feedback
Ecosystems 4   Dynamic Equilibrium And Feedback
Ecosystems 4   Dynamic Equilibrium And Feedback
Ecosystems 4   Dynamic Equilibrium And Feedback
Ecosystems 4   Dynamic Equilibrium And Feedback
Ecosystems 4   Dynamic Equilibrium And Feedback
Ecosystems 4   Dynamic Equilibrium And Feedback
Ecosystems 4   Dynamic Equilibrium And Feedback
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Ecosystems 4 Dynamic Equilibrium And Feedback

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  • 1. Dynamic Equilibrium and Feedback Now it gets complicated!!!!!
  • 2. Remember This?
  • 3. Dynamic Equilibrium When a system is in balance or harmony, it is in a steady state called dynamic equilibrium.
  • 4. Negative Feedback This decreases the amount of change by reducing some of the inputs. This leads to stability and the state of dynamic equilibrium is maintained.
  • 5. Negative Feedback
  • 6. Positive Feedback This is less common. This increases the amount of change. This upsets the balance, or steady state. The dynamic equilibrium is de-stabilized.
  • 7. Positive Feedback Example
    • A lake is polluted and fish die.
    • The dead fish cause further pollution.
    • This leads to the death of more fish because decay uses up oxygen.
  • 8. Feedback in a Coral Reef
  • 9. Humans and Feedback Humans often cause positive feedback and disturb the equilibrium of an ecosystem. Can you think of any examples?

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