Me: What are cells
Dave: Yeah, I know what cells are! They're very small and they're in your body.
Dave: Oh. If you want more information, you're asking the wrong person because that's all I know.
Me: Okay I'll tell you what they are. Cells are very small and in your body as you as you said, but they also perform functions such as creating proteins, and the proteins do small favors for our body. For example,white blood cells create proteins called antibodies, which do the favor of killing germs inside the body.