help !!! need help with these 4 . please !!

Population ecologists have identified two sets of strategies that organizations can use to gain access to resources and enhance their chances of survival in the environment. Which of the following is one of these strategies? related diversification strategy cost leadership strategy vertical integration strategy r-strategy The European Union is a force for change. Which of the following is an organization's most important asset? environmental dynamism human resources environmental richness organizational structure The process of reengineering is started with the product and not the customer