For example, if a 37-year-old Marine with 10 years of service desires to reenlist in the Marine Corps, his/her age will be 27 for enlistment purposes. Although the maximum age for enlistment is 35, any individual older than 28 is required to request an age waiver.
Homeostasis. The biological definition of homeostasis is âthe tendency of an organism or cell to regulate its internal environment and maintain equilibrium, usually by a system of feedback controls, so as to stabilize health and functioningâ.lmost all homeostatic control mechanisms are negative feedback mechanisms. These mechanisms change the variable back to its original state or âideal valueâ. A good example of a negative feedback mechanism is a home thermostat (heating system).
Ad. One example of negative feedback in homeostasis is the way the body regulates blood pressure. The receptors in this case are pressure-sensitive veins located near the heart and the head. These receptors send nerve impulses to the part of the brain, here the control center, that regulates heart rate.n response to the brain's messages, the heart speeds up or slows down to regulate the blood pressure. The concept of negative feedback in homeostasis is also used in psychology. In psychology it can be a useful way of understanding basic drives and motivations.