(Art by Armin Mortazavi) When imagining a cell, it’s often easy to think of it as a lone entity, a single squishy bubble of fluid. However, cells are actually incredibly complex, and they can organize in ways to form many types of structures and ultimately whole living organisms like a tree, a bird, or even our own bodies! Understanding how these cells interact and get together is key to understanding how different cells make different structures – like how bones are different from skin for instance. Knowing this also reveals how cells talk to one another. And just as we…