Now, the study of biology is responsible for some of the most profound insights that humans have about the world around them. So take a look at these four panoramas. In the upper left, you see some bacteria. This happens to be equal line. You obviously see a butterfly, a flower, a dolphin. If you see that, the outer space just looks like these different forms and structures. You have no idea that they are all related to one another. So one of the most profound things that biology told us is that all life on Earth is exceptionally related similar to one another. So, for example, all of these life forms rely on DNA and RNA for storing and transmitting and using their genetic and inherited information. They are all based on cell. Cell is the fundamental building blocks of all life. All of these organisms consist of cells, and the cells essentially have the same chemicals inside of them. Carbon, hydrogen, oxygen, nitrogen, a whole bunch of other stuff in much smaller amount. All of these organisms conducted metabolism. In other words, chemical reactions using convert energy from one form to another, and the basic chemistry is very similar to one another. The type of molecule that is used very similar to one another.