The life context: cells, nutrients and signals

The current trend in biology is to collect more and more data as fast as possible; their number is so overwhelming that it is almost impossible to fit them into a coherent picture starting from data analysis. The only possibility to make experimental results meaningful is to try to fit them into a general model of a living organism, starting from the assumption that life in itself is very simple and that actual complexity arises from the interaction of organisms with numberless and chaotic environments. The aim of this paper is to define the basic factors ruling all forms of life and their interactions with the environment.