Ecosystem Relationships


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Ecosystem Relationships

  1. 1. CHAPTER 3 Lesson 3: Ecosystem Relationships I. How do organisms depend on one another? <ul><li>Producer - makes its own food </li></ul><ul><ul><li>1. Most all plants </li></ul></ul><ul><li>Consumers - must find its own food </li></ul><ul><ul><li>1. All animals </li></ul></ul><ul><li>Decomposers – organisms that break down dead and decaying matter </li></ul><ul><ul><li>1. worms, fungi </li></ul></ul>
  2. 2. II. How can we classify all consumers? A. Herbivore: Eats only plants, fruits, seeds Deer, squirrel, prairie dogs B. Carnivore: Eats meat only Snake, owl, wolf, shark C. Omnivore: Predators and their prey Eat both plants and meat Humans, bears,
  3. 3. III. What is a food chain? A. A path by which energy passes from one living thing to another 2. Producer- plant 1. Energy source- sun 3. Consumer- herbivore- mouse 4.Consumer- carnivore- wolf 5. Decomposer – break down dead wolf into soil for plant 1 2 3. 4 5 Food Chain Game Food Chain Game
  4. 4. IV. What is a food web? <ul><li>Food chains that overlap </li></ul><ul><li>Shows how all the animals in a community get their food </li></ul>
  5. 5. <ul><li>What is an energy pyramid? </li></ul><ul><ul><li>A. Energy pyramid- shows the amount of energy at each level of a food web </li></ul></ul>