The Biological Species Concept by Theodosius Dobzhansky and Ernst Mayr

Multiple Choice

The biological species concept by Theodosius Dobzhansky and Ernst Mayr defines a species in the textbook as a group of interbreeding natural populations reproductively isolated from other such groups and occupying a specific niche.Such a definition cannot be used for

A) fossils.
B) asexual organisms.
C) determining species based on dead or preserved specimens.
D) organisms that cannot be raised in captivity,easily bred,or with very long generation times.
E) All of the choices pose problems for the biological species concept.