Which likely trigger of the adaptive radiation known as the Cambrian explosion is the best example of ecological opportunity?

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Which likely trigger of the adaptive radiation known as the Cambrian explosion is the best example of ecological opportunity?
asked Apr 6, 2012 in Biology by Kist Nus ~Expert~ (641 points)
    

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Cambrian explosion started around 542 million years ago when the ocean is completely oxygenated and the increased of oxygen brought many species.

answered Apr 6, 2012 by Kist Nus ~Expert~ (641 points)



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