When the Only Evidence Available for Two Extinct Species Is

Multiple Choice

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.