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BIOS 255 Comprehensive Exam Review ( Latest 2024 / 2025 ) Actual Questions and Answers 100% Correct $10.99   Add to cart

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BIOS 255 Comprehensive Exam Review ( Latest 2024 / 2025 ) Actual Questions and Answers 100% Correct

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BIOS 255 Comprehensive Exam Review ( Latest 2024 / 2025 ) Actual Questions and Answers 100% Correct

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  • August 21, 2024
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  • 2024/2025
  • Exam (elaborations)
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  • bios 255
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BIOS 255 Comprehensive Exam Review



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, BIOS 255 Comprehensive Exam Review

1. Homeostasis
Answer:
* Presence of stable internal environment
* Failure to maintain homeostasis leads to illness or death

2. Homeostatic Regulation
Answer: Physiological adjustment to preserve homeostasis invariable environments

3. Feedback
Answer: Stimulation of a receptor triggers response that changes environmentat that receptor

4. Negative Feedback
Answer:
* Effector opposes or negates the original stimulus
* Minimizes change
* Primary mechanism of homeostatic regulation in the body
* Dynamic process: Set point varies with varying environments & activity levels

5. Negative Feedback Receptors
Answer: Temperature receptors in skin & brain are stimulated & send signals to the control
center

6. Negative Feedback Control Center
Answer: The temperature control center receivedinformation from the two sets of temperature
receptors & sends commands to theeffectors

7. Negative Feedback Effectors
Answer: Sweat glands & smooth muscle in the walls ofblood vessels supplying the skin
respond

8. Positive Feedback
Answer:
* Stimulus produces a response that exaggerates or enhances the original change (rather than
opposing it)
* Tends to produce extreme responses
* Does not restore homeostasis

9. Positive Feedback Loop
Answer:
* Escalating cycle
* Typically occurs when a potentially dangerous or stressful process must be completed

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