Artificial Life - Emergence and Emergent Properties. Life and Alife are both an emergent property. The best way to explain an emergent property is to say this is what you get when something is more than the sum of its parts.
Human thought is reliant on nearly all the cells that make up the brain.
If you cut out sections the results are completely different. This is true for all cells. A single cell cannot do much without interaction with other cells. A single cell has no concept of the whole. To be more precise a single cell usually has no concepts at all.