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2.2 interactions among living things ch5 l2


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Science Chapter 5, Lesson 2

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2.2 interactions among living things ch5 l2

  1. 1. Interactions Among Living Things Chapter 5, Lesson 2
  2. 2. 1. food chain… <ul><li>is the energy in food that is passed from one organism to another. </li></ul><ul><li>is the path energy takes from producers to consumers to decomposers. </li></ul>
  3. 3. 2. food web… <ul><li>shows the relationship between all of the species in a community. </li></ul><ul><li>shows how populations must compete for food. </li></ul><ul><li>is a map of overlapping food chains. </li></ul>
  4. 4. 3. herbivores… <ul><li>eat plants, algae, and other producers. </li></ul>
  5. 5. 4. carnivores <ul><li>eat herbivores, and other animals </li></ul>
  6. 6. 5. predators… <ul><li>living things that hunt other living things for food </li></ul>
  7. 7. 6. prey…. <ul><li>are the hunted. </li></ul>
  8. 8. 7. scavengers… <ul><li>are meat eaters, but don’t hunt. </li></ul><ul><li>they feed on the remains of dead animals. </li></ul>
  9. 9. 8. omnivore…. <ul><li>eats both animals </li></ul><ul><li>and plants. </li></ul><ul><li>people are omnivores. </li></ul>
  10. 10. 9. symbiosis…. <ul><li>a relationship between two kinds of organisms that lasts over a period of time. </li></ul><ul><li>there are different kinds. </li></ul>
  11. 11. 10. mutualism… <ul><li>a relationship between two kinds of organisms benefits both of them. </li></ul>
  12. 12. 11. parasitism… <ul><li>is a relationship in which one kind of organism lives on or in another organism and may harm that organism. (ex. a mosquito or flea) </li></ul>
  13. 13. 12. commensalism… <ul><li>is a relationship in which one organism benefits from another without harming or helping it. </li></ul>