Two species of salamanders will mate and produce offspring, i.Hybrid sterility j.Post but their offspring are sterile. k.Behavioral isolation 1.pre Two similar species of birds have different mating rituals. m.Hybrid inviability n.Post Embryos of two species of mice bred in the lab usually abort. Peepers breed in woodland ponds; leopard frogs breed in o.Habitat isolation p.Pre swamps. There are 28 morphologically diverse species of a group of sunflowers called silverswords A horse (2n = 64) and a donkey (2n = 62) can found on the Hawaiian Archipelago. These mate and produce a mule. How many species are an example of chromosomes would there be in a mule's cells? a geographical cline. 31 adaptive radiation. 62 allopolyploidy. 63 the bottleneck effect. 64 sympatric speciation. 126 Which of the following is descriptive of the What prevents horses and donkeys from punctuated equilibrium model? hybridizing to form a new species? Long periods of stasis are punctuated reduced hybrid fertility by speciation and episodes of relatively reduced hybrid viability rapid change. mechanical isolation Microevolution is the driving force of gametic isolation speciation. behavioral isolation Most rapid speciation events involve polyploidy in plants. Allopatric speciation is more likely to occur Evolution occurs gradually as the when an isolated population environment gradually changes. is large and thus has more genetic In the framework of geologic time periods, variation. speciation events occur very slowly and is reintroduced to its original homeland. the equilibrium of species is punctuated is exposed to different selection by frequent extinctions. pressures in its new habitat. inhabits an island close to its parent Which of the following would not contribute to species' mainland. allopatric speciation? All of the above contribute to allopatric geographic separation speciation. genetic drift gene flow different selection pressures founder effect
i.Hybrid sterility j.Post Two species of salamanders will mate and produce offspring, but their offspring are sterile. k.Behavioral isolation 1.pre Two similar species of birds have different mating rituals. m.Hybrid inviability n.Post Embryos of two species of mice bred in the lab usually abort. o.Habitat isolation p.Pre Peepers breed in woodland ponds; leopard frogs breed in swamps. A horse (2n = 64) and a donkey (2n = 62) can mate and produce a mule. How many chromosomes would there be in a mule's cells? 31 62 63 64 126 What prevents horses and donkeys from hybridizing to form a new species? reduced hybrid fertility reduced hybrid viability mechanical isolation gametic isolation behavioral isolation Allopatric speciation is more likely to occur when an isolated population is large and thus has more genetic variation. is reintroduced to its original homeland. is exposed to different selection pressures in its new habitat. inhabits an island close to its parent species' mainland. All of the above contribute to allopatric speciation. There are 28 morphologically diverse species of a group of sunflowers called silverswords found on the Hawaiian Archipelago. These species are an example of a geographical cline. adaptive radiation. allopolyploidy. the bottleneck effect. sympatric speciation. Which of the following is descriptive of the punctuated equilibrium model? Long periods of stasis are punctuated by speciation and episodes of relatively rapid change. Microevolution is the driving force of speciation. Most rapid speciation events involve polyploidy in plants. Evolution occurs gradually as the environment gradually changes. In the framework of geologic time periods, speciation events occur very slowly and the equilibrium of species is punctuated by frequent extinctions. Which of the following would not contribute to allopatric speciation? geographic separation genetic drift gene flow different selection pressures founder effect
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