Hair protects your head by being a shield for it, such as, it prevents harsh sunburn, it keeps you warm. HAHA and it's also for looks.
keeps us warm by maintaining body temperature.
it doesn't it keeps you cool! <<< i got a cotton sweater. lol It keeps me warm :P
the body uses fat for many for example: the fat layer of our body keeps us warm. Fat is also used as padding and insulation for the organs and nerves.
it keeps us warm and helps plants survive
=The skeleton helps us by supporting our body and holding us up. It also protects tose of our many internal organs- e.g==skull protects the brain==ribs protect the lungs and heart==backbone protects the kidney=
Because it traps the heat that comes from your body from escaping, so you have more heat so it keeps you warm.