 Directly relevant to the Focal Question is that this framework invites a more systematic treatment of the relationship between each of the primary kinds of biological individuals—evolutionary and physiological individuals—and other key features typically appealed to in characterizing them, including growth, reproduction, lineages, cohesion, metabolism, and control.  Sections 6 and 7  will elaborate the initial visual summary offered by  Figure 2  in ways that further fill out the conceptual space occupied by biological individuals. But first  Section 5  attends to the right-hand side of Figure 2 by providing a brief overview of the idea of groups as biological individuals.