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.
In a feedback loop the product of a process, such as the breakdown of proteins into amino acids, has an effect on the rate of the process. Negative feedback occurs when the rate of the process decreases as the concentration of the product increases. Positive feedback occurs when the rate of a process increases as the concentration of the product increases. Negative feedback controls the rate of a process to avoid accumulation of a product.