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Chapter 2 Biology
Chapter 2 Biology
Chapter 2 Biology
Chapter 2 Biology
Chapter 2 Biology
Chapter 2 Biology
Chapter 2 Biology
Chapter 2 Biology
Chapter 2 Biology
Chapter 2 Biology
Chapter 2 Biology
Chapter 2 Biology
Chapter 2 Biology
Chapter 2 Biology
Chapter 2 Biology
Chapter 2 Biology
Chapter 2 Biology
Chapter 2 Biology
Chapter 2 Biology
Chapter 2 Biology
Chapter 2 Biology
Chapter 2 Biology
Chapter 2 Biology
Chapter 2 Biology
Chapter 2 Biology
Chapter 2 Biology
Chapter 2 Biology
Chapter 2 Biology
Chapter 2 Biology
Chapter 2 Biology
Chapter 2 Biology
Chapter 2 Biology
Chapter 2 Biology
Chapter 2 Biology
Chapter 2 Biology
Chapter 2 Biology
Chapter 2 Biology
Chapter 2 Biology
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Chapter 2 Biology

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ecology power point

ecology power point

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  • 1. Chapter 2 Ecology
  • 2. Ecology
    • the study of interactions that take place between organisms and their environment
  • 3. Section 2.1 Summary – pages 35 - 45
    • The biosphere is the portion of Earth that supports living things.
    • It extends from high in the atmosphere to the bottom of the oceans.
    The Biosphere
  • 4. Biotic Factors
    • The Living parts of the environment.
    • (giraffe, trees, grass…)
  • 5. Abiotic Factors
    • The Nonliving parts of the environment.
    • (temp., humidity, rocks, water…)
  • 6. Levels of Organization
    • Organism – Species – Population
    • – Community – Ecosystems
  • 7. Species
  • 8. Population
  • 9. Community
  • 10. Niche
    • The role an organism plays in its environment.
    • Rule : No two organisms can occupy the same niche at the same time for very long.
  • 11. Ecosystem
    • Made up of interacting populations in
    • a biological community and the
    • community’s abiotic factors.
    • There are two major kinds of ecosystems— terrestrial ecosystems and aquatic ecosystems.
  • 12. Section 2.1 Summary – pages 35 - 45 Organisms in Ecosystems
    • A habitat is the place where an organism lives out its life.
  • 13. Symbiosis
    • Living Together
    • 3 Types
  • 14. Mutualism
    • Both species Benefit from the relationship.
  • 15. Parasitism
    • One species benefits
    • the other is harmed
  • 16. Commensalism
    • One species benefits
    • The other is not hurt or helped
  • 17. Organisms and Energy
    • All the energy on Earth comes from the sun!!
  • 18. Autotroph
    • Organisms that use the energy from the sun to produce their own food.
    • (producers)
  • 19. Heterotroph
    • Consumes other organisms as food source.
    • 3-Types
            • Herbivores
            • Carnivores
            • Scavengers and decomposers
  • 20. Herbivores
    • Heterotrophs that consume plants only.
    • Ex: cows, deer, rabbits…
    • (First order consumers)
  • 21. Carnivores
    • Heterotrophs that consume other animals.
    • Ex: Humans, cats…
    • (Second… order consumers.)
  • 22. Scavengers
    • Feed on dead organisms.
    • Ex: vultures
  • 23. Decomposers
    • Break down dead plants and animals.
    • Ex: Bacteria and fungus
  • 24. How does energy flow through the ecosystem???
    • In ONE direction only
  • 25. Section 2.2 Summary – pages 46 - 57 Sun-Producers-Consumers-Decomposers- Released as heat Autotrophs First-order heterotrophs Third-order heterotrophs Second-order heterotrophs Decomposers
  • 26. Food Chain
    • Simplest exchange of energy.
  • 27. Food Web: Interconnected, overlapping food chains
  • 28. Food Web
  • 29. Ecological Pyramids
    • Shows how energy flows through the ecosystem
  • 30. Energy Pyramid
    • Shows how energy decreases by 90% at each trophic level.
    • Only 10% of the energy is passed onto the next level.
  • 31. Energy Pyramid
    • Organisms at the bottom of the pyramid are more numerous than at the top.
  • 32. Different Types of Pyramids
  • 33. Nutrients
    • Nutrients cycle through the ecosystem, never disappearing.
    nutrients nutrients nutrients
  • 34. Water Cycle
    • 3 parts…
        • Evaporation
        • Condensation
        • Precipitation
  • 35. Water Cycle
  • 36. Nitrogen Cycle
    • 2 Parts…
      • Nitrification
      • Denitrification
  • 37.  
  • 38. Carbon Cycle

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