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Describe how negative and positive feedback maintain homeostasis in the body. Pg 10-11

Negative feedback
- these mechanisms cause the variable to change in direction opposite to that of the initial change, returning to its ideal value.
- The output shuts off the original stimulus or reduces intensity

Positive feedback
- the result of positive feedback enhances the original stimulus so that the output or activity is accelerated. Not as common as negative feedback.

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Summer work a&p

By Julia Roussell