Keyword Analysis & Research: positive feedback loops definition biology


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Which is an example of a positive feedback loop?

A trophic cascade is an example of a positive feedback loop in nature. Basically, the presence of an apex predator within the landscape changes the behaviour of prey animals, which in turn increases the complexity and diversity of the biome.

What are some examples of positive feedback loops?

Scientists are aware of a number of positive feedbacks loops in the climate system. One example is melting ice. Because ice is light-coloured and reflective, a large proportion of the sunlight that hits it is bounced back to space, which limits the amount of warming it causes.

What is positive feedback in biology examples?

One example of biological positive feedback is at the onset of contractions in childbirth. When contraction occurs, oxytocin is released into the body stimulating more contractions. Thus, the result is an increased amplitude and frequency of contractions.

What are some examples of positive feedback mechanisms?

Examples of positive feedback mechanisms are. One example of a biological positive feedback loop is the onset of contraction in childbirth. When a contraction occurs, the hormone oxytocin is released into the body, which stimulates further contractions.


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