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Do negative feedback mechanisms decrease or end the original stimulus?
Wiki User
∙ 11y ago
tough question.
negative feedback system is a dynamic system, therefore always in change.
so it can end the stimulus if needed, but usually decreases the stimulus to maintain balance.
Balance is the key word in the negative feedback system
Wiki User
∙ 11y ago
Wiki User
∙ 11y agoNo. Negative feedback mechanisms tend to increase the original stimulus!
TRUE
Wiki User
∙ 12y agoFalse. This is what negative feedback does, not positive. So the answer is false.
Wiki User
∙ 10y agoTrue
Anonymous
Wiki User
∙ 13y agono ends it
Anonymous
Yuj
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Where is positive feedback mechanism seen in human body?
No, positive feedback is rare, compared to negative feedback. This is because negative feedback is a self regulating cycle, so think of the regulation of heartbeats, breathing and amount of erythrocytes in the blood. The reason positive feedback doesn't occur that often is because it is not self regulating, the action of the cycle carry's on with the system. An example would be hypothermia. When your body goes below 37 degrees C, you will start to shiver to work up, if this does not work, your metabolic processes will start to slow down, you will become sleep, lethargic and lacking of energy, hence making it extremely difficult to bring heat back into the system to warm it up. Thus, the positive feedback can be a destructive mechanism. The easiest way to sum it up is that negative feedback is common as it tries to put a system back to its original equilibrium, positive feedback is rare because it is trying to make a new point for equilibrium. Hope this helps.
What is message centered feedback?
This is feedback given to someone, pertaining to the message they communicated with you. Example: "I think speeding penalties should be more harsh, as they cause so many deaths." Message Centered Feedback - "I agree, that's a good argument." This is message centered feedback because the response pertained to the original message
Is thirst a negative feedback mechanism?
Thirst is part of a negative feedback mechanism. When the proper levels of water are not present in the body, a sensor detects the imbalance. The brain sent sends a signal to tell the body to obtain water/fluids to remain to a homestatic level of water. Once fluids are obtaind, the body can retain the water and levels will increase. Homeostatis is then reached as the response decreases.
What happens when an atom loses or gains electrons?
it becomes a charged ion loose = positive gain= negative
The diffusion of K out of the cell makes the inside of the cell less positive or more negative and acts to restore the original resting membrane potential This process is called?
repolarization
Positive feedback differs from negative feedback in that?
Most of the mechanisms in our body are regulated by negative feedback inhibition. In this type of process, the end product shuts off or reduces the intensity of the original stimulus. Production of certain hormones when mother is giving birth to a child is regulated by positive feedback inhibition. In this type of process, response leads to an even greater response.
What is feedback amplifer?
A negative feedback amplifier (or more commonly known as feedback amplifier)can be defined as an amplifier which combines a fraction of the output with the input so that a negative feedback opposes the original signal.
What occurs As a result of a negative feedback mechanism?
In a negative feedback system the response of the effector reverses the original stimuli.
How does feedback work?
Most homeostatic control mechanisms are negative feedback mechanisms. In such systems, the net effect of the response to the stimulus is to shut off the original stimulus or reduce its intensity. or in simpler terms its just feedback that causes the stimulus to decline or end.
What is the type of feedback where the net effect is that the output of the system shuts off the original stimulus or reduces its intensity?
In a negative feedback loop, the output of the system decreases the intensity of the stimulus.
How does negative feedback stabilize gain?
Output of an Amplifier is given back to same Amplifiers input in out of phase. act as subtracter. if amplifiers output excess the some portion is given back to input and it reduces the original input. this makes original signal so small so that gives desired output. its of course close loop so by this manner this negative feedback stabilizes gain.
What is a response that feeds back to reverse the changes caused by the original stimulus?
Negative feedback is the response to changes in stimuli that reverts the change back to the normal stimuli.
3.50 to 2.80 what is the percent decrease?
Percent change can be found using the formula below:(new amount) - (original amount)% change = __________________________(original amount)Using this formula, we find that2.8 - 3.5 -0.7_______ = ____ = -0.2, which equals a 20% decrease (negative answer)3.5 3.5
When an increase or decrease is expressed as a percent (Hint the amount of change divided by the original number multiplied by 100)?
It is a percentage change - unless the increase changes a negative number to a positive number or a decrease does the opposite.
Which feedback mechanism causes the variable to deviate further and further from its original value or range?
positive feedback
Formula for percent of increase and decrease?
% increase or decrease = |original value - new value| /original value * 100%
What percent expresses a 5 percent decrease in the original whole?
95% You simply subtract the decrease from the original 100%.
