This graph shows the initial distribution of wing size in a population of saw flies in a forest. A predatory wasp enters the area and eats saw flies
with smaller wings. Saw flies with wing sizes in which area of the graphs
will become more common over time

Sarah and john are having a discussion on genetic diversity. sarah believes that it happen over a long period of time. john it happens immediately. who is correct? a. sarah is correct because genetic diversity occurs over a long period of time. b. john is correct because genetic diversity occurs immediately. c. both are correct because genetic variation can occur or long period of time. d. neither are correct because genetic diversity occurs over any period of time