Before Darwin, scientists such as Lamarck envisioned evolutionary change as ...

Before Darwin, scientists such as Lamarck envisioned evolutionary change as transformationalproperties of an ensemble change because every member of the ensemble changes.
 
  Darwin's theory of evolutionary change was by contrast a variational onethe properties of an ensemble change because of the action of some sorting process acting on preexisting variation within the ensemble. Re-ferring to the figure above, describe the kind of sorting process that takes place when we use artificial selec-tion to change the characteristics of a breed of animals or plants and when natural selection operates on a population.
 
  What will be an ideal response?