The Impact of the Cell Theory on Biology

A good example of a law of qualitative ture is the cell doctrine in biology, which states that the basic building block of all living organisms is the cell. The impact of this law on biology has been tremendous. Once you could break stuff up into cells, you can start doing cell physiology and understand what's happening inside one cell. It really opened up the field. And it takes a lot of science education to realize that these theories are just mental toys. They are models that include and exclude parts of the phenomena, and they're just used for thinking. That there's still a lot to learn with this frame.