Cells are intelligent, in a way. But that fact is a much better argument for intelligent design than for the idea that the human intellect is insignificant.
This might be a good time to take stock of those you rely on for your medical care. How much do you know about your doctors?
Xenobots are artificially interconnected biological tissues whose arrangements are determined by some algorithm.
How do you get a 3-D shape from a linear code? That is the puzzle of morphogenesis.