Question

Which theory states that all organisms are composed of one or more cells, the cell is the basic unit of life, and new cells arise from existing cells?

Answer 1

unified cell theory

CHAPTER SUMMARY 3.1 How Cells Are Studied A cell is the smallest unit of life. Most cells are so small that they cannot be viewed with the naked eye. Therefore, scientists must use microscopes to study cells. Electron microscopes provide higher magnification, higher resolution, and more detail than light microscopes. The unified cell theory states that all organisms are composed of one or more cells, the cell is the basic unit of life, and new cells arise from existing cells.