What items wete products that europeans wanted from the americas

There are many products that the Europeans brought from the North and South America. From the North, it was predominantely fur from beaver, fox and mink etc. as well as bison hides. Local medicinal plants was also very popular. From the Central America, they brought tobacco, cocoa beans and  food  such as corn, beans, pumpkins berries and so on. What Europeans gave in return were horses, guns, iron tools and utensiles, rum and textiles that were not availble to the local Indians.

From the Colonies and Carribean Europeans imported, furs, cotton, sugar, molassas, and tobacco. From South America cocao and coffee.

genetics is the study of how dna works, the methodologies defining the new recent technologies allow scientist to have a panoramic view of the entire dna landscape, especially how genomes interact with their environment, including off course, factors outside their organisms.

thus is very possible the existence of both scenarios, where populations of isolated individuals have different genetic traits, and share traits related to genetic mutation, due rats can easily travel overseas using human transport channels. so scientists could get a vast number of data, including human interaction, evolution of rodents, health development, spread of infections, development of new organisms, how genomes evolve in different environments and so on.

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