Adaptation and Regulation

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Questions and Answers

Which of the following is an example of homeostasis in humans?

Varying glucose concentration

Fluctuating blood pH levels

Adjusting to changes in the external environment

Maintaining a constant body temperature (correct)

What is the purpose of a sensor in homeostasis?

To maintain a steady state

To detect changes in the external environment

To trigger a response to a stimulus (correct)

To reduce the stimulus

What is the role of negative feedback in homeostasis?

To eliminate changes in the internal environment

To maintain a steady state

To reduce the stimulus (correct)

To amplify the stimulus

Which of the following is NOT a factor maintained by homeostasis in humans?

Room temperature Signup and view all the answers

What is the purpose of a set point in homeostasis?

To maintain a steady state Signup and view all the answers

What serves as a stimulus in homeostasis?

Fluctuations above or below the set point Signup and view all the answers

What is the role of a response in homeostasis?

To maintain a steady state Signup and view all the answers

What is the main control mechanism in homeostasis?

Negative feedback Signup and view all the answers

What does homeostasis in animals rely largely on?

Negative feedback Signup and view all the answers

What is the purpose of homeostasis in organisms?

To maintain a steady state Signup and view all the answers

Which of the following statements best describes a regulator animal?

A regulator animal uses internal mechanisms to control internal change despite external fluctuation. Signup and view all the answers

Which of the following statements best describes a conformer animal?

A conformer animal allows its internal condition to change in accordance with external changes. Signup and view all the answers

Which of the following animals is an example of a regulator?

A mammal Signup and view all the answers

Which of the following animals is an example of a conformer?

A fish Signup and view all the answers

Which of the following statements is true about regulating and conforming animals?

Regulating animals can only regulate some internal conditions. Signup and view all the answers

What does a fish regulate in its internal environment?

Solute concentrations in its blood and interstitial fluid. Signup and view all the answers

What does a fish conform to in its external environment?

Surrounding temperature in the water. Signup and view all the answers

Which of the following animals is an example of a conformer in the text?

A bass Signup and view all the answers

Which of the following animals is an example of a regulator in the text?

A beaver Signup and view all the answers

Which of the following choices describes a conformer animal?

A conformer animal allows its internal condition to change in accordance with external changes. Signup and view all the answers

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.

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Description

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.