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 reproduction is possible.
A)I only
B)II only
C)I and III
D)II and III
E)I, II, and III

Question

Quizplus · Accepted Answer

The biological species concept defines species based on reproductive isolation, making statement I correct. The concept is typically used for grouping extant species rather than extinct ones, so statement II is incorrect. Statement III is correct as the biological species is defined as the largest population in which successful reproduction can occur. Therefore, options A, B, D, and E are incorrect.

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