I believe that the answer is The Carbon Cycle, however I could be wrong.
Answer:
Mercantilism was centred on England and France, and it was in these states that mercantilist policies were most often enacted.
Roles, needs and diversity affect teamwork because of individual differences. In Sociology, roles are what an individual does when he/she is in this aspect or setting. Needs are what an individual has to have in order to survive. Diversity is where individuals have different backgrounds. When these are understood, teamwork can flourish and ideas can be significant.
The answer is Fraternal twins. This twins usually don't look like exactly the same because they don't share the same genetic material, they can't be distinguished as twins. This type of twins grow and born together in the womb from a unique fertilized egg.