Answer: Genetic Drift
Explanation: Genetic drift is an evolutionary mechanism whereby gene or allele frequency of a particular population change over generations due to random chance. The effect of genetic drift is most visible in small population due to reduction in population size resulting from natural disaster or splitting of a small group from the main population to formation a colony. However, it can occur in large population as well but it's effect is as strong as that occurring within a small population.
The genetic drift among the Dunkers could be attributed to the official split between conservatives and progressives members in 1882.
Answer:
Control
Explanation:
In a study of whether a drug might help reduce depression, research participants were assigned to take the drug or a placebo. Those who took the placebo were in the control condition.
In an experiment, the control group are not given the treatment material (drugs in this case). This is to have a basis for comparison of results of the study.
A placebo drug is manufactured not to have any treatment effect on the subjects.
Answer:
b. when restraining forces are removed, driving forces will produce change
Explanation:
Force field analysis is a theory of Kurt Lewin in his contribution to change management.
This model suggests how change agents may diagnose the forces that drive and restrain proposed organizational change. It draws from this that change agents can only cause change to happen if they eliminate forces restraining order resisting this change.
Lewin list four forces in his research: change forces, driving forces, restraining forces and resisting forces, suggesting that in order for a change to happen the driving forces have to be more than the restraining forces and an equilibrium means no change.
