All About Dog Shampoos! Review of Hartz UltraGuard Rid Flea and Tick Shampoo. The Hartz Mountain company was founded by Max Stern in America in the 1920s. Starting with canaries, the companyâs products expanded to cater to a variety of animals including aquatic animals, cats, parakeets, pigs and dogs, among many others.
Homeostasis: positive/ negative feedback mechanisms. 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. Generally, the body is in homeostasis when its needs are met and its functioning properly.
ï· The body uses 2 types of feedback systems to regulate its internal environment: 1. Negative Feedback (compensates for change) - a mechanism of homeostatic response by which the output of a system reverses a change in a variable bringing the variable back to within normal range.