04:00Homeostasis - What Is Homeostasis - What Is Set Point For Homeostasis- Homeostasis In The Human BodyWhats Up Dude447views
Multiple ChoiceWhich example most clearly describes a system maintained by homeostasis?1581views44rank
Multiple ChoiceWhich example below describes a system that is NOT able to maintain homeostasis?1435views25rank
Multiple ChoiceWhich of the following is NOT one of the three components of homeostatic control systems?4372views5rank
Multiple ChoiceWhich of the following events is NOT the result of a negative feedback mechanism?2851views
Textbook 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.931views
Textbook 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?549views2rank
Textbook QuestionMark 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.183views
Textbook QuestionMark the following statements as true or false. If a statement is false, correct it to make a true statement.b. Homeostasis is the condition of having a dynamic equilibrium of the internal environment.201views
Textbook QuestionMark the following statements as true or false. If a statement is false, correct it to make a true statement.c. Positive feedback loops are triggered by a deviation from the set point of a regulated variable and are shut down when conditions return to the set point.201views
Textbook QuestionMark the following statements as true or false. If a statement is false, correct it to make a true statement.d. The effects of negative feedback loops are amplified to create an escalating response.197views
Textbook QuestionMark the following statements as true or false. If a statement is false, correct it to make a true statement.e. Cell-cell communication is required to coordinate the activities of the whole body.188views
Textbook QuestionThe baroreceptor reflex causes blood pressure to drop when it rises dangerously high. Predict whether this is a positive or negative feedback loop. Explain your reasoning.287views
Textbook QuestionA gradient exists:a. when heat is concentrated in one area of the body.b. when more of a substance is located in one place than in another.c. when there is higher pressure in one place than in another.d. All of the above are correct.e. None of the above are correct.205views