Question

Which of the following may have contributed to the profusion of animal diversity during the Cambrian:

A) acidification of the ocean
B) oxygenation of the ocean
C) extinction of dinosaurs
D) instinctual drive of organisms to improve
E) b and c

Answer 1

The profusion of animal diversity during the Cambrian may have been contributed by the oxygenation of the ocean and the extinction of dinosaurs.

Step-by-step explanation:

The profusion of animal diversity during the Cambrian may have been contributed by several factors. Some of these factors include the oxygenation of the ocean and the extinction of dinosaurs. The rise in atmospheric oxygen levels and large increases in oceanic calcium concentrations created a more suitable environment for animal life. Additionally, the removal of dominant dinosaurs allowed for new animal groups to evolve and diversify.