Volpe's Understanding Evolution 7th Edition by Peter Rosenbaum

Exercise 2

How does the situation in A differ from the situation in C in the fluid model of selection and mutation?
A) In A, mutation equals selection but in C mutation is greater than selection.
B) In A, the situation is in equilibrium and in C it is in flux.
C) In A, mutation is greater than selection but in C, mutation is less than selection.
D) In A, mutation is less than selection and in C mutation is more than selection
E) There is no real difference between A and C.