Associate of Arts Requirements. <----Back to Associate of Arts / Associate of Science. The following are the Graduation Requirements for the Associate of Arts degree. The Associate of Arts degree represents the first two years of a bachelor's degree, and can be transferred to any public college in Ohio. Associate of Arts Requirements.
Negative feedback control mechanisms (used by most of the body's systems) are referred to as ânegativeâ because the information caused by the feedback results in a reverse of the response. TSH is an example: blood levels of TSH serve as feedback for production of TSH. Positive feedback control is used in some cases.
The control of blood sugar (glucose) by insulin is another good example of a negative feedback mechanism. When blood sugar rises, receptors in the body sense a change. In turn, the control center (pancreas) secretes insulin into the blood effectively lowering blood sugar levels. positive feedback mechanism is the exact opposite of a negative feedback mechanism. With negative feedback, the output reduces the original effect of the stimulus. In a positive feedback system, the output enhances the original stimulus. A good example of a positive feedback system is child birth.