To test the effectiveness of a new supplement, one group is given the supplement, and the other group is not given anything. which is the most complete list of the parts of an experiment presented in this scenario?
independent variable, dependent variable
control group, experimental group, dependent variable
independent variable, control group, experimental group
control group, experimental group

Ry was studying two populations of the same species of lizards. one population lived on an island and the other lived on the mainland. both populations were affected by a hurricane that hit the island and the mainland with equal force. a year later, henry was testing the gene frequency and saw a decrease in genetic variation in the island species, but not in the mainland species. which best describes a conclusion he might have reached? gene flow greatly affects small populations, but large populations can recover. genetic drift greatly affects small populations, but large populations can recover. gene flow greatly affects large populations, but small populations can recover. genetic drift greatly affects large populations, but small populations can recover.