It’s difference. Group is a collection of people with sense of shared identity or something in common, but they will not share the same purpose. For example group of student, group of elephant, group of ant or group of fish. If we want to be success we should work in team not in group. For example Volleyball team, Volleyball players have a total of six people, one of them will be leader which leader will be supported and suggested to team. In six people have difference responsibility.