There are many different ways in which signals between cells are encoded.
Cell Biology Site- This is a very large Map and can be view at several levels.
Overview - an introduction to dynamic processes.
Cell Division - the process of cell proliferation
Development - the process of cell differentiation
Apoptosis - the process of programed cell death
Exocytosis - the process of export from the cell
Endocytosis - the process of import into the cell
Gene Expression - the process of converting stored information into functional cell molecules
Transport - the process of moving substances around within the cell
Signaling - the process of cell communication