1. Introduction to Anatomy & Physiology
Homeostasis
1. Introduction to Anatomy & Physiology
Homeostasis
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- Multiple Choice
Which example most clearly describes a system maintained by homeostasis?
- Multiple Choice
Which example below describes a system that is NOT able to maintain homeostasis?
- Multiple ChoiceWhich of the following is an example of positive feedback?
- Multiple ChoiceWhich of the following is an example of a positive feedback mechanism?
- Open QuestionDefine homeostasis.
- Open QuestionCompare and contrast the operation of negative and positive feedback mechanisms in maintaining homeostasis. Provide two examples of variables controlled by negative feedback mechanisms and one example of a process regulated by a positive feedback mechanism.
- Open QuestionCalcium levels in Mr. Gallariani's blood are dropping to dangerously low levels. The hormone PTH is released and soon blood calcium levels begin to rise. Shortly after, PTH release slows. Is this an example of a positive or negative feedback mechanism? What is the initial stimulus? What is the result?
- Open Question
Mark the following statements as true or false. If a statement is false, correct it to make a true statement.
c. Living organisms react to changes in their environment known as stimuli.