Cell Theory

"A living organism conducts self-sustaining biological processes. A cell is the smallest and most basic form of life. The cell theory incorporates three principles: Cells are the most basic building units of life; all living things are composed of cells; and new cells are made from preexisting cells, which divide in two. Who you are has been determined because of two cells that came together inside your mother’s womb. The two cells containing all of your genetic information (DNA) united to begin making new life. Cells divided and differentiated into other cells with specific roles that led to the formation of the body’s numerous organs, systems, blood, blood vessels, bone, tissue, and skin. As an adult, you are made up of trillions of cells."