20 Questions
Which of the following is an example of homeostasis in humans?
Maintaining a constant body temperature
What is the purpose of a sensor in homeostasis?
To trigger a response to a stimulus
What is the role of negative feedback in homeostasis?
To reduce the stimulus
Which of the following is NOT a factor maintained by homeostasis in humans?
Room temperature
What is the purpose of a set point in homeostasis?
To maintain a steady state
What serves as a stimulus in homeostasis?
Fluctuations above or below the set point
What is the role of a response in homeostasis?
To maintain a steady state
What is the main control mechanism in homeostasis?
Negative feedback
What does homeostasis in animals rely largely on?
Negative feedback
What is the purpose of homeostasis in organisms?
To maintain a steady state
Which of the following statements best describes a regulator animal?
A regulator animal uses internal mechanisms to control internal change despite external fluctuation.
Which of the following statements best describes a conformer animal?
A conformer animal allows its internal condition to change in accordance with external changes.
Which of the following animals is an example of a regulator?
A mammal
Which of the following animals is an example of a conformer?
A fish
Which of the following statements is true about regulating and conforming animals?
Regulating animals can only regulate some internal conditions.
What does a fish regulate in its internal environment?
Solute concentrations in its blood and interstitial fluid.
What does a fish conform to in its external environment?
Surrounding temperature in the water.
Which of the following animals is an example of a conformer in the text?
A bass
Which of the following animals is an example of a regulator in the text?
A beaver
Which of the following choices describes a conformer animal?
A conformer animal allows its internal condition to change in accordance with external changes.
Study Notes
Homeostasis in Humans
- An example of homeostasis in humans is the regulation of body temperature.
- The purpose of a sensor in homeostasis is to detect changes in the internal environment.
- The role of negative feedback in homeostasis is to counteract changes and return to a set point.
Homeostasis Mechanisms
- A set point in homeostasis is the optimal value of a physiological parameter, such as body temperature or blood pressure.
- A stimulus in homeostasis is a change in the internal environment that triggers a response.
- The role of a response in homeostasis is to counteract the stimulus and return to the set point.
- The main control mechanism in homeostasis is the negative feedback loop.
Homeostasis in Animals
- Homeostasis in animals relies largely on the nervous system and hormones.
- The purpose of homeostasis in organisms is to maintain a stable internal environment despite changes in the external environment.
Regulator and Conformer Animals
- A regulator animal is one that actively maintains a constant internal environment despite changes in the external environment.
- A conformer animal is one that allows its internal environment to change with the external environment.
- Examples of regulator animals include mammals and birds.
- Examples of conformer animals include fish and reptiles.
- Regulator animals expend energy to maintain a constant internal environment, while conformer animals do not.
Regulation and Conformation in Animals
- A fish regulates its internal environment by controlling its body temperature, but conforms to the external environment by changing its body temperature to match the surrounding water.
- Fish conform to changes in the external environment, such as changes in water temperature.
Test your knowledge on how animals maintain their internal environment in the face of environmental fluctuations. Explore the concepts of feedback control and regulation versus conformity in this quiz.
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