What does cell theory state about all life forms?

Cell theory is a fundamental principle in biology that outlines the characteristics of all living organisms in relation to cells. It states that all life forms are made up of one or more cells, which serves as the basic unit of structure and function in living organisms. This idea emphasizes that whether an organism is simple, like bacteria (unicellular), or complex, like humans (multicellular), the cell is the essential building block of life.

The importance of this concept lies in its universality; it applies to all known forms of life, establishing that regardless of size, complexity, or type, all living entities share this common feature of cellular composition. This helps in understanding biological processes and the organization of living organisms.

Other options do not accurately reflect the established principles of cell theory. The notion that life only arises from non-living matter contradicts the idea of biogenesis, which states that life originates from pre-existing living cells. The claim that all life forms are purely unicellular is incorrect, as it excludes the vast diversity of multicellular organisms. Lastly, the statement regarding cells being the largest living organisms is misleading since while cells can vary in size, they are not the largest as multicellular organisms, such as plants and animals, are made up