Alfred Russel Wallace deduced that dramatic differences in flora and fauna between the islands Bali and Lombok were the result of the
A) large distance between the two islands.
B) differing speed of evolution on the two islands.
C) isolation due to the depth of the ocean trench between the two islands.
D) former connection of Lombok with the Asian mainland.
E) dramatic differences in climate and soils between the two islands.

Question

Quizplus · Accepted Answer

Wallace noted the dramatic differences in flora and fauna between Bali and Lombok and attributed this to the deep ocean trench between the two islands, which served as a significant barrier to the movement of species. This observation led to the identification of the Wallace Line, which delineates the faunal boundary between Asia and Australasia.

Alfred Russel Wallace Deduced That Dramatic Differences in Flora and Fauna