Homeostasis in Biology
An 11th-grade biology worksheet focusing on homeostasis, negative feedback loops, and the regulation of internal body conditions.
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Homeostasis in Biology
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Read each question carefully and provide your best answer. For multiple choice questions, circle the letter corresponding to your chosen answer.
1. Which of the following best defines homeostasis?
The process of maintaining a stable internal environment.
The body's ability to adapt to external changes.
The growth and development of an organism.
The transmission of genetic information.
2. Which type of feedback loop is most common in maintaining homeostasis?
Positive feedback
Negative feedback
Neutral feedback
Balanced feedback
3. The human body maintains a relatively constant internal temperature of approximately degrees Celsius.
4. When blood glucose levels rise, the pancreas releases to lower them.
5. Positive feedback loops work to reverse the initial stimulus.
True
False
6. Shivering is a homeostatic mechanism to increase body temperature.
True
False
7. Describe the role of the hypothalamus in thermoregulation.
8. Explain how a negative feedback loop works to maintain blood pressure.
9. The diagram below illustrates a major organ system involved in maintaining homeostasis. Identify the system and explain one way it contributes to maintaining a stable internal environment.
