A
ace_countryboy_25
Guest
a. reproductive barriers require hundreds or thousands of generations to evolve
b. new species can form in a single generation by the production of new reproductive structures
c. reproductive barriers evolve slowly, usually as the result of many mutations
d. reproductive barriers may evolve as a consequence of a population’s evolution in response to a new set of environmental conditions
e. reproductive barriers usually involve morphological changes that result from using structures in new ways in new environments
b. new species can form in a single generation by the production of new reproductive structures
c. reproductive barriers evolve slowly, usually as the result of many mutations
d. reproductive barriers may evolve as a consequence of a population’s evolution in response to a new set of environmental conditions
e. reproductive barriers usually involve morphological changes that result from using structures in new ways in new environments