Organization of an organism as multiple associated cells, often with differentiated roles. Its evolution raises questions of reproductive alignment and control of within-body competition.
Passage through a single founding cell during a life cycle. It increases initial genetic similarity among descendants and restricts transmission of competing cell lineages, without preventing later mutation.
Differentiation between reproductive and nonreproductive cell lineages. Restricting which cells found descendants can reduce transmission of some within-body competitors.
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