If a response increases a disturbance, the system is classified as a feedback system.

If a response increases a disturbance, the system is classified as a positive feedback system.

Further Explanation:

A typical response is a reaction that occurs after something is done. It is an answer to a question that is in the form of a reaction. Feedback is defined as the information that is gained about a reaction to a product. This information allows for the modification of the product. Feedback loops on the processes that result in triggering a certain result based on the change in the system results.

If a response is responsible for an increase in the disturbance, the system can be termed as a positive feedback system. For example, one entity produces a second entity, which in turn produces more of the first entity. It can be concluded that positive feedback depends upon the input.

The response that results in a decrease in the disturbance is known as the negative feedback loop. A typical example of a positive feedback loop is change in the physiology of the body concerning the body temperature. When the body temperature decreases, the brain sends signals to the body to change the physiological aspects of the body to increase the temperature of the body.

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Answer Details:

Grade: High School

Subject: Biology

Topic: Feedback loops.

Keywords:  

Response, reaction, question, answer, positive feedback, negative feedback, input, entity, physiology, temperature, brain.

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c.) polymerase chain reaction

- "unlike the original dna fingerprinting method, dna profiling does not use restriction enzymes to cut the dna. instead it uses the polymerase chain reaction (pcr)? to produce many copies of specific str sequences. pcr is an automated procedure that generates lots of copies of a specific sequence of dna."