1. The council itself would have 45 members designated according to six geographical groups . 2. However, that is a geographical group , not a demonstrable family. 3. This led to different geographical groups evolving at least four varieties of skin pigment to prevent sunburn. 4. The celebrations offer a sense of belonging for religious, social, or geographical groups , contributing to group cohesiveness. 5. Each area board was divided into geographical groups or divisions which were often further divided into smaller districts. 6. The championship had two geographical groups . 7. The first eight seasons the championship was split into three or four geographical groups , representing the Districts of Cyprus. 8. Each are a board was divided into geographical groups or divisions which were often further divided into smaller districts. 9. For the 2016-17 season, the format was revamped, splitting the ten teams into two equal geographical groups , North and South. 10. The effect of this assortative mating is to reduce gene flow between geographical groups , and to increase the genetic distance between groups.