CELL THEORY Cell Theory: There are three parts to cell theory — 1
... Cell Theory: There are three parts to cell theory — 1) the cell is the basic unit of life 2) All living things are composed of cells 3) All cells arise from pre-existing cells. Energy: All living things require energy and energy flows between organisms and between organisms and the environment. Here ...
... Cell Theory: There are three parts to cell theory — 1) the cell is the basic unit of life 2) All living things are composed of cells 3) All cells arise from pre-existing cells. Energy: All living things require energy and energy flows between organisms and between organisms and the environment. Here ...