Which of the following pieces of evidence supports the hypothesis that the adapt

Question

Which of the following pieces of evidence supports the hypothesis that the adaptive radiation of many groups observed during the Cambrian explosion was due to morphological innovation? See Section 25.3 ( page 507) . Animals were present at all levels of the ocean, not just on the ocean floor.

Atmospheric oxygen levels increased during the Cambrian explosion.

Holes in shells and other evidence show that predation evolved during this time.

Duplication and then diversification of Hox genes occurs just prior to and during this time.

Explanation / Answer

Correct answer would be:Duplication and then diversification of Hox genes occurs just prior to and during this time.

Reason:It is known that duplication took place first and then diversification of Hox genes took place. The Cambrian explosion indicates the moment at which diversification of Hox genes took place followed by clusters origin.This resulted in adaptive radiation in different organisms and formation of final structure and formation of the organisms

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