Biology · Evolutionary Biology

Given below are mechanisms that can facilitate major evolutionary transitions, such as the transition from genes to genomes, from unicellular to multicellular organisms, or from individuals to colonies. A. Conflict mediation mechanisms maintain cooperation within emergent units. B. Reduced genetic relatedness among cooperating units accelerates these transitions. C. Division of labour evolves when specialisation increases group-level fitness more than individual fitness losses. D. Transitions are irreversible once higher-level individuality is achieved. Which one of the following options is a combination of all correct statements?