When the only evidence available for two extinct species is their fossil record,evaluation of reproductive isolation and the biological species concept is not useful.However,the phylogenetic species concept could potentially differentiate the species by using evolutionary history to describe
A)morphology traits shared by the smallest group of individuals of each species that share a common ancestor.
B)the ecological niches of each,interacting with living and nonliving parts of their environment.
C)their gametic compatibility.
D)their temporal isolation.

Question

Quizplus · Accepted Answer

The phylogenetic species concept uses evolutionary history to describe the smallest group of individuals that share a common ancestor. This can be determined by analyzing morphology traits in the fossil record. The other options listed rely on factors that cannot be determined from fossils alone.

When the Only Evidence Available for Two Extinct Species Is