Question

how did these great diversity come into being?
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Answer 1

Answer:

Organismal diversity is a direct and inevitable outcome of speciation, the process whereby a single species evolves into two or more distinct ones. ... Significant advances have come from the analysis of the genetic variation and structure in natural populations. Many of these studies are of insects.

Explanation:

Answer 2

Answer:

as many people come from many other countries for trade and settled here as they had great profit