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Why would a rise in the availability of oxygen help explain why the Cambrian explosion occurred?
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- The Cambrian Explosion occurred due to the widespread adoption of bilateral symmetry and the extinction of the Ediacaran fauna. What is this burst of diversity referred to? Explain what kind of triggers these two factors are and why they led to greater diversity.In what way was the evolution of eukaryotic cells linked to the increase in the oxygen concentration in the atmosphere that occurred during the Precambrian?The eon comprising the Cambrian period up to the present is called the (1). It is divided into three eras: Paleozoic, Mesozoic, and Cenozoic. The Paleozoic era, first (2) appeared. Finally, the Cenozoic era is where (3), flourished, lasting up to this day.