Chapter 1
Question 6-How negative and positive feedback maintain homeostasis

1)Negative feedback-This is controlled by the negative feedback mechanisms, by having the output shutoff the original stimulus or reduce the intensity. For example, when humans are exerting energy, we sweat. That is caused by the body needing to cool itself down back to 98.6 degrees, from whatever the higher temperature was. This makes the body cool down so it can go back to being at homeostasis

2)Positive feedback-This is controlled by positive feedbac. This is a result or response enhances the original stimulus so that the activity is accelerated. Its positive, because the change is going in the same direction as the initial disturbance causing the variable to further deviate from its original value or range. For example if a blood vessel is broken, other blood cells start to build up so it can clot and stop bleeding, so that the body can maintain homeostasis.