It would be shivering. Since you are cold, your muscles and bones start to shake and create heat while moving. Shaking and shivering are involuntary responses by your body to maintain homeostasis.
A. The sun, because there has been theory’s of the sun being able to heat earth from there being a lot of iron in the middle of earth.
In an experiment, the group of test subjects left untreated or unexposed to some procedure and then compared with treated subjects in order to validate the results of the test
the death of cells which occurs as a normal and controlled part of an organism's growth or development.
Proteins and fats i believe... Its been awhile.
