Main Migrations/Origins of Latin America

Review the origins of the main migration into Latin America and how they affect the racial or ethnic composition of at least three countries.  When people migrate from Latin America today, where do they go? What elements of Latin American culture have accompanied these migrants to other regions of the World?  What are remittances and why are they important to local economies?  It is okat to search the internet to get current remittance figures for one or more LA countries.  

I really need some direction and insight. Thank you.