Answer Happy

Which of the following statements is correct regarding speciation with secondary reinforcement? if hybrids have lower fitness, then that may select for increased pre-zygotic isolation If post-zygotic isolation is very weak, then reinforcement is more likely When geographic isolation comes to an end, two populations always have to complete the divergence process and become two species. If the reproductive isolating mechanisms that developed during the geographic isolation are somewhat weak but the hybrids between two populations have higher fitness, then the speciation process may continue. speciation with secondary reinforcement can only occur if the taxa become at least partially sympatric