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any disease that is caused by a virus or a bacterium or any other micro-organism.
a response of the body tissues to injury or irritation. It causes pain, swelling, redness and...
the right and left halves of bilaterally symmetrical organisms are mirror images of each other...
(also called heterotrophic organisms) organisms that are not able to produce their own organic...
a disease caused when the body's immune system destroys other body cells.