Aresearcher presents his dog with a bowl of normal dog food and a bowl of vitamin enriched dog food. he then records the amount of each type of food the dog consumes as a measure of his dog's food preference. what kind of measure has the researcher used?

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