Membrane
the cell membrane and the lysosmes
i hope you fail that class jeremy you are procrasinating and pladurismm
your body defends most of your parts of your body
Your immune system defends against STD's with structural defenses like gastric juices and the mucus linings. For more info on the parts of the immune system follow the related question.
Inoculation of plant parts with growth-promoting substances.
Japan was in process of invading China and parts of the Pacific.
if you put it in your pants it will
Lysosomes. ;)
Lysosomes
Blood carries necessary substances to various parts of the body.
by blending in with other things and using special body parts.
Well, It really doesn't really "Defend" a disease, maybe the first parts of it. For instance, sweat is suppost to keep you cool, and prevents over-heating. . . And skin obviously keeps bacteria from the inside.