A feedback mechanism is a process that uses the conditions of one component to regulate the function of the other. It is done to either increase or dampen the change in the system. When the process tends to increase the change in the system, the mechanism is known as positive feedback. Negative feedback is when the process seeks to counter the change and maintain equilibrium.Continue Reading
Feedback is part of a cause-and-effect loop where information about a system is returned to the controller of the system to improve its performance. An example of feedback and a feedback mechanism is the body's ability to control temperature. The condition of the body's temperature is the information fed back to the brain, which is the controller. If the temperature is high, the body sweats in order to cool down. Since the process of sweating is done to stop the temperature change, this is a negative feedback mechanism.
Another example is in psychology in a phenomenon known as "shame loops" that people who easily blush experience. When they realize that they are blushing, they become embarrassed about it, which then causes them to blush even more, creating a positive feedback mechanism. The positive and negative naming of the mechanisms do not indicate whether the feedback is good or bad.Learn more about Biology
In biology, feedback inhibition refers to the mechanisms that control certain processes and functions within cells, the body and even the environment. At its most basic, feedback inhibition means that when some sensor gets a certain amount of feedback from the environment, it turns another system on or off.Full Answer >
Human beings require air because, like all other animals, they are aerobic organisms who require oxygen, which is a component of air. While oxygen is found in water, humans evolved to extract the oxygen from air, as birds, mammals and reptiles do, instead of from the water, as fish and some amphibians do. Additionally, air is necessary to keep the planet warm as it insulates the planet like a blanket.Full Answer >
One method of explaining the respiratory system to children is to break down the system into its component parts. Explain the major organs of respiration, such as the lungs and the diaphragm. Since breathing is an obvious physical change, have children take deep breaths to feel their lungs expand.Full Answer >
Nitrogen is a component in chlorophyll, which is essential for plants to perform photosynthesis. Nitrogen is also required to make amino acids, which are building blocks of proteins that are essential for cellular function.Full Answer >