2.  Protects the body from invaders by providing a
tough protective layer. Warms the body. Cools
the body.

3.  Receives incoming information (senses). Sends
messages to the body about how to react.

4.  Provides Shape and structure to the body.
Allows for movement. Protects vital organs.
Produces blood cells.

5.  Allows for movement of the body. Keeps head
in position. Provides heat.

6.  Controls body functions using chemicals
messengers called hormones.

7.  Transports oxygen, waste, nutrients, hormones,
heat around the body

8.  Brings oxygen into the body. Gets rid of carbon
dioxide.

9.  Cleanses the blood. Rids the body of wastes.
Maintains salt and water balance.

10.  Fights disease.

11.  Breaks down food into smaller molecules.
Absorbs these nutrients into the body.

12.  Produces sex cells (sperm and eggs). Produces
sex hormones (testosterone, estrogen).
Nurtures the unborn baby (fetus).