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Stimulus and response

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Stimulus and response

  1. 1. STIMULUS AND RESPONSE <ul><li>Why animals and plants do what they do ? </li></ul><ul><li>OR </li></ul><ul><li>CAUSE AND EFFECT </li></ul><ul><li>in plants and animals </li></ul>
  2. 2. <ul><li>Describe a situation in which you were immediately scared and/or reacted quickly to something </li></ul><ul><li>Write 4 sentences describing it: </li></ul><ul><ul><ul><li>First… </li></ul></ul></ul><ul><ul><ul><li>Second…. </li></ul></ul></ul><ul><ul><ul><li>Then…. </li></ul></ul></ul><ul><ul><ul><li>Finally….. </li></ul></ul></ul>
  3. 3. WHAT IS A STIMULUS ? <ul><li>STIMULUS : any action that makes and organism to react. That is cause </li></ul><ul><li>Stimulus : singular </li></ul><ul><li>Stimuli: plural </li></ul><ul><li>Example: Give us an example!!! </li></ul>
  4. 4. WHAT IS A RESPONSE ? <ul><li>RESPONSE: how the organism reacts to an stimulus and changes in behaviour. That is an effect </li></ul><ul><li>Ex: </li></ul><ul><li>Give us an example!!! </li></ul>
  5. 5. Examples of stimuli and their responses :
  6. 6. There are two types of stimuli: <ul><li> EXTERNAL STIMULI </li></ul><ul><ul><ul><li>AND </li></ul></ul></ul><ul><ul><ul><li>INTERNAL STIMULI </li></ul></ul></ul>
  7. 7. External Stimulus: <ul><li>External Stimulus: a stimulus that comes from the outside an organism </li></ul><ul><li>Examples: </li></ul>
  8. 8. Internal Stimulus: <ul><li>Internal Stimulus: a stimulus that comes from inside an organism </li></ul><ul><li>Examples: </li></ul>
  9. 9. Decide whether these stimuli are internal or external
  10. 10. The external receptors are in the sense organs
  11. 11. There are two types of responses <ul><li>MUSCULAR RESPONSE </li></ul><ul><li>AND </li></ul><ul><li>GLANDULAR RESPONSE </li></ul>
  12. 12. Muscular response <ul><li>Muscular response: a response made by the muscles </li></ul><ul><li>Examples: </li></ul>
  13. 13. Glandular response <ul><li>Glandular response : substances produced by the glands </li></ul><ul><li>Examples: </li></ul>
  14. 14. Summarize what you have learned <ul><li>1.-What is a stimulus? </li></ul><ul><li>2.- What is a response? </li></ul><ul><li>3.- Give an example of a stimulus and its response </li></ul><ul><li>4.- What is an internal stimulus? </li></ul><ul><li>5.- What is an external stimulus? </li></ul><ul><li>6.-It´s raining and you open up an umbrella. Is this an internal or external response ? Why? </li></ul><ul><li>7.- What are the external receptors? </li></ul>

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