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Questions and Answers
Which of the following best describes homeostasis?
Which of the following best describes homeostasis?
- A state of excessive fluid and electrolyte levels
- A state of equilibrium in the body (correct)
- A state of imbalance in the body
- A state of fluctuating body temperature
What is responsible for maintaining homeostasis in the body?
What is responsible for maintaining homeostasis in the body?
- Environmental factors
- Adaptive responses (correct)
- Genetic factors
- Hormonal imbalances
What is kept within narrow limits to maintain homeostasis?
What is kept within narrow limits to maintain homeostasis?
- Muscle strength
- Blood pressure
- Heart rate
- Body temperature (correct)
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Study Notes
Homeostasis
- Homeostasis is the ability of the body to maintain a stable internal environment despite changes in the external environment.
- It is the regulation of the body's internal conditions, such as temperature, pH, and the concentration of essential nutrients, to maintain a stable and constant environment.
Maintenance of Homeostasis
- Homeostasis is maintained by the nervous system and the endocrine system, which work together to regulate the body's internal conditions.
Regulation of Homeostasis
- The body's internal conditions, such as temperature, blood sugar levels, and blood pressure, are kept within narrow limits to maintain homeostasis.
- This is achieved through a negative feedback mechanism, where any changes in the internal environment trigger a response to return the conditions to their normal range.
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