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| Which is an example of pre-zygotic reproductive isolating mechanisms? |
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| When reproductive isolation occurs between two populations of one species, which of the following is reduced |
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| The unique bird species found on different islands of the Hawaiian archipelago illustrate allopatric speciation - the divergence of new species in reproductively isolated habitats |
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| Adaptive radiation is a relatively rapid appearance of new species from a single lineage or line of descent |
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| Parapatric speciation is similar to disruptive selection, in that two different phenotypes may survive in their habitats, but hybrids between the species are less able to survive |
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| Adaptive radiation is the sudden increase in the population size of a species |
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| Gene flow is the movement of genetic traits from one population to another - which simply indicates that two populations are interbreeding |
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| Allopatric speciation is the divergence of two species from the same line of descent, where two populations are living in the same area |
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| Adaptive radiation is the colonization of new habitats by an existing species |
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| The many species of birds that live on the Hawaiian islands are thought by scientists to have arrived on the islands by separate colonization events from other places |
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| The many species of cichlid fish that occur in African lakes appear to have arisen by sympatric speciation |
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| Polyploidy can allow rapid reproductive isolation, and is an important mechanism in the evolution of many plant species |
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| On the Hawaiian islands, native bird species appear to have originated by colonization of separate habitats by a single founder species |
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| Which of the following tends to minimize the rate of genetic divergence between two populations? |
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| Temporal reproductive isolation occurs when two populations breed at different times, thereby reducing or eliminating gene flow between the populations |
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| The ancestry of wheat is thought by scientists to have included both hybridization of other species, and polyploidy |
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