Which of the following is an example of an experimental scientific investigation? a- placing test tubes in an ice bath for 15 minutes b- recording the sound of class breaking c- noting the ph of a solution on a digital meter d- noting the color of a solution when heated

Abiology teacher asks students to give examples of genetic variations that support the idea that changes in a population’s environment affect genetic variation. which is the least supportive example? a.changes in genetics in human populationsb.antibiotic resistance in bacteria populationsc.pesticide resistance in garden insectsd.changes in the color of the peppered moth population in england