How does membership in a society increase the evolutionary fitness of individuals and society?

Often members of a society are closely related to one another.related individuals share a large proportion of each other's genes. therefore a relative survive increases the chance that the genes in individual share with that relative will be passed along to an offspring;

I'm sorry to hear that. i will try to answer your other questions if it is within my ability. : )answers: my favourite colour is black.my favourite food is pasta.my favourite school subject is english, but i do also like lunch time.my least favourite subject is history as well as geography. i have currently garnered a quite equal hatred for both of the subjects.what about you? well, you for the points. : )