6) Where are fossils from the “Cambrian Explosion” found in the Grand Canyon? What type of environment did the organisms live in and how do we know? Describe what these creatures may have looked like. Explain in 2-4 sentences

How have ethnic groups shaped the population in central america and the caribbean? how has migration shaped the population in central america and the caribbean? how has small land areas shaped population in central america and the caribbean? how has a rapid population growth shaped the population in central america and the caribbean?