Do extinction events such as the Cretaceous-Tertiary Mass Extinction event prove the Great Chain of Being wrong? indeed I would assume so.
Can someone explain this in detail because I have been informed my whole life that the great chain of being is true.

Select the correct answer. which mutation is harmful to the organism? a. a mutation allowing moths to camouflage better on blackened tree bark b. a mutation making staphylococcus aureus resistant to the antibiotic methicillin c. a mutation inhibiting human immunodeficiency virus from attaching to and entering the cell d. a mutation causing uncontrolled cell division e. a mutation giving plant leaves a bitter taste to discourage herbivores from eating them