Fig. 7
From: Levels and building blocks—toward a domain granularity framework for the life sciences
Top-Level Subclasses of ‘eukaryotic cell level entity’. Eukaryotic cell level entities are differentiated into a bona fide ‘eukaryotic cell level object’ and a ‘fiat eukaryotic cell level entity’ class, which are disjoint. The former is differentiated based on its underlying type of causal unity into ‘eukaryotic cell’, which is based on physical covering, and ‘bona fide cluster of eukaryotic cells’, which is based only on internal physical forces and not on physical covering. The fiat eukaryotic cell level entities are differentiated based on their self-connectedness into the disjoint subclasses ‘self-connected fiat eukaryotic cell entity’ and ‘scattered fiat eukaryotic cell entity’. See text for more details