I know this one! Different Organs play separate
parts in the process. The skin, for example, regulates outside body
temperature by sweating if you're too hot (The sweat evaporates,
taking some of the surface temperature with it), If you're too cold,
you get goosebumps. In ancient times, this helped to control heat
loss by making a layer of air that was trapped in the fur of prehistoric
man. That's just about all I know. Have fun Ads.
Just how big is the Elephant ?
HomeWork Elephant is receiving over
100,000
page
impressions per month (and growing).
Homework Elephant is proud
to be a part of the National grid for
learning.
Check-out
the 
