Which Of The Following Is An Example Of A Positive Feedback Loop?

What is an example of a positive feedback loop?

Positive feedback occurs to increase the change or output: the result of a reaction is amplified to make it occur more quickly.

Some examples of positive feedback are contractions in child birth and the ripening of fruit; negative feedback examples include the regulation of blood glucose levels and osmoregulation..

What is an example of positive feedback in the endocrine system?

Positive feedback produces a response that continues to increase in order to produce the desired effect. In this mechanism, the activity of a hormone signals the system to produce and release more of the hormone. An example of a positive feedback mechanism is the release and response of oxytocin during childbirth.

How is a positive feedback loop normally stopped?

In these cases, the positive feedback loop always ends with counter-signaling that suppresses the original stimulus. A good example of positive feedback involves the amplification of labor contractions. The contractions are initiated as the baby moves into position, stretching the cervix beyond its normal position.

Which of the following is the best example of a positive feedback effect?

The only example of a positive feedback loop is labor contractions, since in that case, the output increases the original stimulus. In all of the other answer choices, the body is trying to maintain homeostasis by reversing the effect of the original stimulus.

Which of the following would be an example of positive feedback involving hormones?

A good example of a positive feedback system involves oxytocin and its other effect: causing contraction of uterine muscle during childbirth (Figure 1.28). In this case the stimulus for oxytocin secretion is dilation of the uterine cervix.

What is positive feedback in communication?

Positive feedback is communication that recognizes another’s strengths, achievements or successes.

What is positive feedback quizlet?

Positive feedback. The response of the effector increases the change of the stimulus, moving the body away from homeostasis. Normal range is lost in order to speed up the processes. (Ex) Uterine contractions during childbirth.

Why is it called negative feedback loop?

A negative feedback loop is a reaction that causes a decrease in function. It occurs in response to some kind of stimulus. Often, it causes the output of a system to be lessened; so, the feedback tends to stabilize the system. This can be referred to as homeostasis, as in biology, or equilibrium, as in mechanics.

Which is an example of a positive feedback loop quizlet?

What is an example of positive feedback? -Breastfeeding stimulates hypothalamus. A primary mechanism of homeostasis, whereby a change in a physiological variable triggers a response that counteracts the initial change.

What is a positive feedback loop easy definition?

Positive feedback is a process in which the end products of an action cause more of that action to occur in a feedback loop. This amplifies the original action. An important example of positive feedback is the process of labor and childbirth. … This diagram shows simple feedback.

What are examples of positive feedback?

A number of examples of positive feedback systems may be found in physiology.One example is the onset of contractions in childbirth, known as the Ferguson reflex. … Another example is the process of blood clotting.More items…

How do you write positive feedback?

Here are a few things to consider when writing positive feedback:Make it specific. … Give it in a timely manner. … Let others see it. … Praise everyone eventually. … Explain their impact. … Give the right amount of praise.

Would a positive feedback loop ever be helpful?

No, positive feedback would not be helpful in maintaining homeostasis because it amplifies a con- dition. If an organism was not in homeostasis, a positive feedback loop would only take it further from homeostasis.

What is meant by a positive feedback loop?

Positive feedback loops enhance or amplify changes; this tends to move a system away from its equilibrium state and make it more unstable. Negative feedbacks tend to dampen or buffer changes; this tends to hold a system to some equilibrium state making it more stable.

What is feedback loop in communication?

Feedback Loops & the Benefits of Rapid Communication. … A feedback loop is defined as a system where the output of a system becomes the input for the next iteration of the system.

What does positive feedback mean?

: feedback that tends to magnify a process or increase its output.

What is an example of a negative feedback loop in the environment?

A good example of a negative feedback mechanism will be if the increase in temperature increases the amount of cloud cover. The increased cloud thickness or amount could reduce incoming solar radiation and limit warming.