Hybrid inviability and hybrid infertility are two examples of Blank______.Multiple choice question.postzygotic isolating mechanismsprezygotic isolating mechanismsnon-adaptive isolating mechanismsnon-zygotic isolating mechanisms

When populations are only partially reproductively isolated, which of the following may occur?Multiple choice question.Postzygotic isolating mechanisms will act to prevent the survival and reproduction of hybrid offspring if a zygote is formed.Even though individuals are interbreeding, prezygotic and postzygotic isolating mechanisms ensure that hybrids do not survive and reproduce.Prezygotic isolating mechanisms will act to prevent the formation of a zygote if postzygotic isolating mechanisms fail.Despite prezygotic and postzygotic isolating mechanisms, some individuals may survive and reproduce.Need help? Review these concept resources.

How do postzygotic isolating mechanisms prevent successful interspecies hybridization?Multiple choice question.The egg cannot be fertilized by sperm of another species following a successful mating attempt.Members of different species attempt to mate but are unsuccessful due to anatomical differences.Although fertilization is successful, the resulting hybrid is unable to develop or reproduce.Members of different species come into contact, but do not recognize one another as potential mates.

If two reproductively isolated populations re-establish contact, Blank______ will tend to increase differences between the populations, and Blank______ will tend to decrease differences between the populations.Multiple choice question.hybrid infertility; hybrid inviabilityhybrid inviability; hybrid infertilityreinforcement; gene flowgene flow; reinforcement

Which of the following is the process in which traits that increase prezygotic isolation between two differentiated populations are favored due to natural selection against the production of unfit hybrids?Multiple choice question.EvolutionFertilizationMutationReinforcement

Which of the following is an example of postzygotic isolation?Multiple choice question.Mating between a sheep and a goat produces an embryo that fails to develop.Several frog species that occupy the same habitat remain separate species because they breed at different times of year.Lions and tigers do not hybridize in the wild because they are ecologically isolated.A male moth cannot detect pheromones produced by females of different moth species.