HIV crossed from chimps to humans in the 1920's in what is now the Democratic Republic of Congo. This was probably as a result of chimps carrying the Simian Immunodeficiency Virus (SIV), a virus closely related to HIV, being hunted and eaten by people living in the area.
Your role is to take care of your body because its the only on you have. Your responsibility is to make sure your body is getting the nutrition and vitamins it needs. Making sure you drink enough water and keep as many chemicals out of your body as you can is a huge key to health. taking care of your body's outsides are just as important as taking care of your body's outsides, as well.
The answer is B. Shivering when Cold
Homeostasis is the maintenance of Stable Condition within the body
When we are experiencing a cold temperature, Our brain send a signal to our nerves to tighten and loosen really fast in order to create heat within our body. ( making it back to a stable temperature)