Yesterday, I wrote at some length about the cells that make up a good part of "life" on Earth now. In particular, eukaryotic cells of which we humans are made up; a human can therefore be considered one way of assembling these cells. There are many different ways (i.e. insects, mollusks, etc...). Here is another way:
http://www.flickr.com/photos/mimiandpapa/831136542/