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5th Grade Ch. 6 Lesson 2 How do Species Change

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5th Grade Ch. 6 Lesson 2 How do Species Change

  1. 1. Ch. 6 Lesson 2 How do species change?
  2. 2. heredity <ul><li>process in which plants & animals receive ( inherit ) ½ their genes from each parent </li></ul>
  3. 4. <ul><li>genes determine almost everything about how organisms grow </li></ul>Heredity and Traits website
  4. 5. ecosystem can cause differences in organisms hydrangea
  5. 6. mutation <ul><li>change in an organism’s gene that can be passed from parent  offspring </li></ul><ul><li>can be helpful, harmful or neutral </li></ul>http:// www.echalk.co.uk / - Peppered Moth
  6. 7. harmful change gene mutates helpful change adaptation
  7. 8. Video clip-Mutations
  8. 9. structural adaptation <ul><li>changed body part that helps organism survive </li></ul>
  9. 10. behavioral adaptation <ul><li>inherited behavior that help animals survive </li></ul>
  10. 11. Structural (Physical) and Behavioral Adaptations Video Clip
  11. 12. Four More! How do species change? 12/07/10 Your Own Key Idea: * * Your Own Key Idea: * * Classmate’s Key Idea: * * Classmate’s Key Idea: * * Classmate’s Key Idea: * * Classmate’s Key Idea: * *
  12. 13. Four More! How do species change? 12/07/10 Four More! How do species change? Your Own Key Idea: * * Your Own Key Idea: * * Classmate’s Key Idea: * * Classmate’s Key Idea: * * Classmate’s Key Idea: * * Classmate’s Key Idea: * * Your Own Key Idea: * * Your Own Key Idea: * * Classmate’s Key Idea: * * Classmate’s Key Idea: * * Classmate’s Key Idea: * * Classmate’s Key Idea: * *
  13. 14. Draw a picture of a structural adaptation & a behavioral adaptation. Write a sentence describing your picture, underline the adaptation. structural adaptation- A giraffe uses its long neck to reach leaves in trees.
  14. 15. Behavioral adaptation when parent has to teach something Structural adaptation-the hummingbird body parts When an animal changes color to parents’ genes The pepper moth gets black if smokes on it Genes-you get them from your parents Moth gets black (adaptations)-change in organism’s genes Animals that live in caves are mostly blind. Behavioral adaptation-when you are born with it Behavioral adaptation-hummingbird’s long beak Structural adaptation has to learn. Behavior adaptation is an instinct. Cat with 6 toes is a mutation-neutral A giraffe’s neck grew over time-structural adaptation Mutation is a change in an animal’s genes. The moth turning black when the lichen turned dark.

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