Homeostasis is maintaining a constant internal environment. A constant internal environment is important to help ensure that all of an organisms life processes work properly. Organisms maintain this beneficial environment by self-regulating. This technique of self-regulating is called, homeostasis. If homeostasis can be maintained then cells and organisms stay alive. If homeostasis can't be maintained, death might occur.
In order to know what homeostasis looks like, I'd like to go over three types of homeostasis occurring in the human body.
Humans maintain a frequent temperature around 98.5 degrees Fahrenheit.
If it is hot outside we sweat, and if we get cold we shiver. The hypothalamus of the brain receives negative responses from your body and makes modifications to keep your internal temperature 98.5 Fahrenheit
Let's look at another example of self-regulating which is also called homeostasis.
The body must maintain a certain amount of water in the body. Once again the hypothalamus and also the kidney works alongside one another to keep the drinking water level constant. If you want water you get a signal from the brain telling you that you are thirsty, if you have an abundance of water you urinate.
The body also regulates the quantity of glucose in your bloodstream. The pancreas works hard to regulate the amount of blood in your bloodstream. The pancreas controls this by regulating insulin levels.
One last example of homeostasis is that your body will maintain a constant PH level.