Ideas in this flowchart

• Cells underlie life, organismal development, and the formation of the human body.
• A living organism conducts self-sustaining biological processes.
• A cell is the smallest and most basic form of life.
• Cell theory describes the fundamental principles of cellular life.
• Cells are the most basic building units of life.
• All living things are composed of cells.
• New cells are made from preexisting cells, which divide in two.
• Human development illustrates how cells form a complex organism.
• Two cells containing genetic information united inside the mother’s womb to begin new life.
• The cells divided and differentiated into cells with specific roles.
• These specialized cells formed organs, systems, blood, blood vessels, bone, tissue, and skin.
• As an adult, a person is made up of trillions of cells.