made of 206 bones, which support and protect the body and give it shape.

made of muscles, which move the skeleton and make up some organs.

brings oxygen to the lungs and then to the body cells and gets rid of carbon dioxide.

uses the heart, blood, and blood vessels to move materials to and from cells.

uses skin, lungs, and kidneys to remove wastes from the body.

sends messages throughout the body by way of the brain, spinal cord, and nerves.

uses the mouth, stomach, and small intestines to turn food into nutrients that the cells of the body can use.

protects and fights against disease and helps heal injuries.

Protects the body from injury and germs and removes some wastes.

Produce chemicals that travel in the blood to control growth and other activities.

produces offspring (that is, more of one's own kind).