Which of the following statements about species, as defined by the biological species concept, is (are)correct?
I.Biological species are defined by reproductive isolation.
II.Biological species are the model used for grouping extinct forms of life.
III.The biological species is the largest unit of population in which successful interbreeding is possible.
A) I and II
B) I and III
C) II and III
D) I, II, and III

Question

Quizplus · Accepted Answer

The statement that biological species are defined by reproductive isolation is correct, as is the statement that the biological species is the largest unit of population in which successful interbreeding is possible. However, the biological species concept is not used for grouping extinct forms of life, so statement II is incorrect.

Which of the Following Statements About Species, as Defined by the Biological