Healing a cut is like repairing a part of your machinery. All animals have some ability to repair damaged parts, and this is so common that the repairing has a special name: regeneration.
In some of the simpler animals, regeneration is remarkable. A starfish can rebuild a new tentacle that is cut off, an earthworm can replace much of its body that is lost, a crab can rebuild a new claw when one is lost. In larger and more complicated animals, regeneration is more limited. You cannot grow a new arm or leg, but you do have some important repairing ability, especially for damaged skin.
Your skin is a special and important part of your body that people seldom think about. The outer layer of skin is made from the tough pieces of cells that are no longer alive. Underneath there is a layer of cells that is
always multiplying and making new cells, which are pushed toward
the surface. When you have a cut or break in your skin, the growing skin
layer pushes new cells sidewise and these slowly close up the break.
the immune system helps protect the body inside and outside using red blood cells and white blood cells it helps attack the diseases and defends your body from and any other thing that may be harmful
white blood cell defends the body against disease.
our body has blood which contains w b c which removes germs and fights against the germs
Defends the body after it has been invaded by a microscopic organism
One way the body protects itself against microbes is with the cell membrane. The cell membrane is like a body guard, it lets certain cells, and virus's in. Another way the body can protect itself is with the white blood cell. The white blood cell defends the body against microbes.
antibodes, white blood cells
The hedgehog and the porcupine.
I asume that a killer whale defends itself with its extremly large body. -MMMORELAND
White blood cells
rid itself of germs.