According to Ernst Mayr, a species consists of individuals that are characterized by all of the following EXCEPT
A)they are in one or more groups.
B)they produce fertile offspring.
C)they are reproductively isolated from other groups.
D)they are similar in appearance.
E)they interbreed.

Question

Quizplus · Accepted Answer

Ernst Mayr's definition of a species, known as the Biological Species Concept, states that a species consists of individuals that are reproductively isolated from other groups and produce fertile offspring. While individuals may often be grouped together and have a similar appearance, these traits are not essential to defining a species. Therefore, option D (they are similar in appearance) is the one that is NOT necessary for individuals to be classified as a species according to Mayr's definition.

According to Ernst Mayr, a Species Consists of Individuals That