AP BIOLOGY

Detailed explanation-1: -Kin selection is based on ‘inclusive fitness’, the idea that, for example, sterile workers can accrue reproductive benefits by helping their relatives. In doing so, they help shared genes to survive and get passed on to the next generation. This provides a route for eusociality to evolve.

Detailed explanation-2: -Kin selection theory predicts that animals are more likely to behave altruistically towards their relatives than towards unrelated members of their species. Moreover, it predicts that the degree of altruism will be greater, the closer the relationship.

Detailed explanation-3: -Thus, the evolution of altruism requires (positive) assortment between focal C players and cooperative acts in their interaction environment, and such assortment is the basic mechanism by which altruism can evolve.

Detailed explanation-4: -Many acts of animal altruism can be explained via two established theories. Kin selection dictates that animals will preferentially help their relatives, thereby benefiting the altruist’s own genetic legacy. Kin selection can explain many acts of altruism among animals that live in groups.

Detailed explanation-5: -Kin selection can be classified as an altruistic behavior and is therefore sometimes called kin altruism. Kin selection behavior is altruistic because an organism weighs the success of its relatives as greater than its own success.