Alfred Russel Wallace Was Associated with the Discovery of All

Multiple Choice

Alfred Russel Wallace was associated with the discovery of all of these factors related to biogeography except:

A) the movement of land masses due to the mechanisms of continental drift.
B) the presence of dramatically different species on the adjacent islands of Bali and Lombok.
C) the concept of natural selection to explain the diversity of life on Earth.
D) the presence of groupings of species that change over geographic distances.
E) latitudinal gradients in species diversity, including increased tropical biodiversity.