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Questions and Answers
In a negative feedback loop, which of the following best describes the role of the control centre?
In a negative feedback loop, which of the following best describes the role of the control centre?
- To perform an action that shifts the system back to the stable state
- To compare receptor information against a reference point (correct)
- To carry information to and from receptors
- To detect changes from the stable state
Which of the following is an example of a positive feedback loop?
Which of the following is an example of a positive feedback loop?
- Contractions in childbirth (correct)
- Maintaining red blood cell concentration in the blood
- Regulating body temperature
- Adjusting intracellular water balance
Which of the following is an example of a positive feedback loop?
Which of the following is an example of a positive feedback loop?
- Blood coagulation (correct)
- Release of digestive enzymes in anticipation of eating food
- Fainting after standing for too long
- Release of erythropoietin
Which of the following is an example of a positive feedback loop?
Which of the following is an example of a positive feedback loop?
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Which of the following best describes a hormone?
Which of the following best describes a hormone?
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Which of the following best describes the action of hormones?
Which of the following best describes the action of hormones?
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