Answer: D- a mechanism for evolution
Explanation: The mechanism for evolution refers to the changes in allele frequencies within a single population.
There are four fundamental forces of evolution: Natural Selection, Genetic Drift, Mutations and Gene Flow
One of the main controversial issues in population genetics is concerned with the relative importance of both mechanisms in determining evolutionary changes
Gettier's paper used counterexamples <span> to argue that there are cases of beliefs that are both true and justified—therefore satisfying all three conditions for knowledge on the JTB account—but that do not appear to be genuine cases of knowledge. Gettier, therefore, argued that his counterexamples show that the JTB account of knowledge is false—and thus, that a different conceptual analysis is needed to correctly track what we mean by "knowledge".</span>
Georgia's economy was able to fight off the effects of the Great Depression by increasing its wartime factory production.
Too much blood can disguise spatter or make stain patterns unrecognizable.
Answer: 18
Explanation: Starting with four empty buffer , definitely we would 18 Buffer pools hits that will follow the alphabets either ascending or descending order.