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What is a threshold stimulus?...

What is a threshold stimulus?

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**Step-by-Step Solution:** 1. **Definition of Threshold Stimulus**: A threshold stimulus is defined as the minimum intensity of a stimulus that is necessary to elicit a response from an organism. 2. **Understanding Intensity**: The term "intensity" refers to the strength or magnitude of the stimulus. This can be in the form of light, sound, pressure, or any other type of sensory input. 3. **Response Requirement**: For a stimulus to be considered a threshold stimulus, it must be strong enough to trigger a physiological response in a human or an animal. If the stimulus is below this threshold, no response will occur. ...
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Knowledge Check

  • When a threshold stimulus is applied to a muscle, the muscle fibres will contract fully or will not contract at all. This is known as:

    A
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    B
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    C
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    D
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    B
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    C
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    D
    undergo tetany.
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