What is the name for the observations and data on which a scientific explanation can be based

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

Adistinctive characteristic of mammals that is not observed in other vertebrates is

which is an effect of short-term environmental changes? a) adaptation b) speciation c) extinction d) death (5 points)