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