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Osmosis can be described as the movement of water from a high concentrated area to a low concentrated area, through a selectively permeable membrane 

The five stages of mitosis include, Interphase, Prophase, Metaphase, Anaphase and Telephase 

The main way in which vaccinations prevent infection is by causing white blood cells to produce antibodies. These antibodies are produced rapidly upon re-infection and...

Definition: diffusion is the spreading out of particles from an area of high concentration to an area of low concentration

The theory:

Pathogens are microorganisms that can cause disease. Pathogenic bacteria make us ill in 2 way: 1) by damaging body cells 2) releasing toxins. Pathogenic viruses invade body cells where they use the cellul...