Cell Theory

Question 1

Cell theory 1

Answer 1

1. All living things are composed of one or more cells
   • Some living things may have only one cell
   • Other living things may have trillions of cells

Question 2

Cell theory 2

Answer 2

2. The cell is the basic unit of life
   • Cells give structure to living things

Question 3

Cell theory 3

Answer 3

Cell Theory
3. All cells come from pre-existing cells
• New cells form when old cells divide