February 23, 2017

Homework Help: Hi570ry-history

Posted by n33d h3Lp on Tuesday, February 1, 2011 at 8:40pm.

Question 2.
Is the “Columbian Exchange” a unique event, or have similar events occurred throughout world history? Is there a point at which a difference in scale – the sheer quantity of biota that travel between widely separated areas – makes such an exchange radically different than the relatively routine exchange of, for example, flu viruses between populations?

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