In the Early Nineteenth Century,the French Scientist Georges Cuvier Provided

In the early nineteenth century,the French scientist Georges Cuvier provided conclusive evidence of the extinction of species on Earth.Although Cuvier correctly asserted that a series of catastrophes led to these extinctions,he could not provide a testable explanation of the source of the new animals and plants that appeared after the extinction of older forms.How would you argue that modern evolutionary theory provides an explanation for the proliferation of new forms of life after mass extinctions?