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Ecology introduction


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Ecology introduction

  1. 1. What is Ecology? copyright cmassengale
  2. 2. Organisms and Their Environment copyright cmassengale
  3. 3. What is Ecology?? <ul><li>The study of interactions that take place between organisms and their environment . </li></ul><ul><li>It explains how living organisms affect each other and the world they live in. </li></ul>copyright cmassengale
  4. 4. Habitat & Niche <ul><li>Habitat is the place a plant or animal lives </li></ul><ul><li>Niche is an organism’s total way of life </li></ul>copyright cmassengale
  5. 5. The Nonliving Environment <ul><li>Abiotic factors - the nonliving parts of an organism’s environment. </li></ul><ul><li>Examples include air currents, temperature, moisture, light, and soil. </li></ul><ul><li>Abiotic factors affect an organism’s life. </li></ul>copyright cmassengale
  6. 6. The Living Environment <ul><li>Biotic factors - all the living organisms that inhabit an environment. </li></ul><ul><li>All organisms depend on others directly or indirectly for food, shelter, reproduction, or protection. </li></ul>copyright cmassengale
  7. 7. Abiotic or Biotic? Biotic copyright cmassengale
  8. 8. Abiotic or Biotic? Abiotic copyright cmassengale
  9. 9. Abiotic or Biotic? Abiotic copyright cmassengale
  10. 10. Abiotic or Biotic? Biotic copyright cmassengale
  11. 11. Levels of Organization copyright cmassengale
  12. 12. What are the Simplest Levels? <ul><li>Atom </li></ul><ul><li>Molecule </li></ul><ul><li>Organelle </li></ul><ul><li>Cell </li></ul><ul><li>Tissue </li></ul><ul><li>Organ </li></ul><ul><li>System </li></ul>copyright cmassengale
  13. 13. Levels of Organization <ul><li>Ecologists have organized the interactions an organism takes part in into different levels according to complexity . </li></ul>copyright cmassengale
  14. 14. 1 st Level of Organization <ul><li>Organism: An individual living thing that is made of cells, uses energy, reproduces, responds, grows, and develops </li></ul>copyright cmassengale
  15. 15. 2 nd Level of Organization <ul><li>Population: A group of organisms, all of the same species , which interbreed and live in the same place at the same time . </li></ul>copyright cmassengale
  16. 16. 3 rd Level of Organization <ul><li>Biological Community: All the populations of different species that live in the same place at the same time. </li></ul>copyright cmassengale
  17. 17. 4 th Level of Organization <ul><li>Ecosystem: Populations of plants and animals that interact with each other in a given area with the abiotic components of that area. (terrestrial or aquatic) </li></ul>copyright cmassengale
  18. 18. 5 th Level of Organization <ul><li>Biosphere: The portion of Earth that supports life. </li></ul>copyright cmassengale
  19. 19. The Biosphere <ul><li>Life is found in air, on land, and in fresh and salt water. </li></ul><ul><li>The BIOSPHERE is the portion of Earth that supports living things. </li></ul>copyright cmassengale
  20. 20. What level of organization? Organism copyright cmassengale
  21. 21. What level of Organization? Community copyright cmassengale
  22. 22. What level of Organization? Population copyright cmassengale
  23. 23. copyright cmassengale