Which of the following is a pre - zygotic barrier that can cause reproductive isolation ? Two fish who breed at different times of the year . The fetus of the hybrid of two fish species cannot survive long enough to emerge from the egg . The hybrid offspring of two fish species cannot reproduce
Q: Which of the following forms of reproductive isolation illustrates a prezygotic barrier to gene…
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Q: Which of the following is a post -zygotic barrier that can cause reproductive isolation ?
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- Which of the following is not an example of a postzygotic barrier between different species? The hybrids created by interspecies crosses are usually infertile Separate species typically do not mate since they have different mating displays Often times the embryo created through an interspecies cross fails to develop and dies The hybrids created through interspecies crosses are generally very unhealthyWhich of the following is a post -zygotic barrier that can cause reproductive isolation ? Two fish who live in different location in a lake and don't come into contact often enough to breed . Two fish who breed at different times of the year . The hybrid offspring of two fish species cannot reproduce .Of the following, which is an example of a postzygotic barrier? O Due to incompatible interactions between inherited genes, a hybrid fetus is unable to develop, and is aborted. O One species mates in spring, while another mates in summer. O A female spider of one species does not respond to the mating display of a male of a closely related species. O Cell surface proteins of one species eggs prevent sperm from another species attaching, so the sperm cannot fertilize it.
- All of the following scenarios are examples of barriers that distinguish separate species. Which is not a post-zygotic barrier? Two species of ladybugs live in the same habitat. Although they mate at the same time of year, their genitals are physically incompatible. Two species of fish inhabit the same stream. They are capable of mating and producing healthy offspring. The offspring, however, are infertile. and 2 Two species of opossums inhabit the same forest. Although they are capable of mating, no offspring ever survive development. hschool 3, Two species of mice coexist in a forest habitat. They are capable of mating and producing offspring. The offspring, however, are frail and die young. When Charles Darwin visited the Galapagos Islands, he observed the marine iguana. He later decided that the marine iguana evolved from the terrestrial iguana found on the mainland of South America. The marine iguana differs from the terrestrial iguana in several ways. The marine iguana has a flat…Why are hybrids not very common in nature? In most cases, there are barriers in place that prevent two different species from mating None of the above The majority of hybrids are sterile All of the above Zygotes resulting from gametes from two different species tend to not growPostzygotic reproductive barriers are related to the progeny. Which one is a result of allopolyploidy? Reduced hybrid fertility Reduced hybrid viability Gametic isolation Hybrid breakdown
- otamopyrgus antipodarum is a species of freshwater snail that has spread far beyond its native New Zealand. Some populations of these tiny snails reproduce sexually, and other populations reproduce asexually. Huge asexual populations are now disrupting ecosystems all over the world, particularly where the water is contaminated with phosphorus. Fertilizers and detergents contain phosphorus, so agricultural runoff and other forms of water pollution are common in these regions. Like most animals that cannot reproduce sexually, the asexual snails have at least three sets of chromosomes; like most sexual organisms, the sexual snails have two. Explain why sexually reproducing snail populations predominate in regions where the water is unpolluted.All of the following are true of subspecies except; All members of a subspecies are infertile and cannot reproduce Subspecies are geographically isolated from the parent species Subspecies are given a third subspecies name Subspecies often have different characteristics than the parent speciesWhich of these outcomes are examples of reproductive isolation? Select all that apply. Individuals of different species are physically compatible and can engage in sex Hybrid individuals cannot produce offspring Hybrid individuals or their offspring have similar fitness to the original species Reproduction occurs at different times Mating occurs but fertilization does not occur
- Global warming is an issue affecting many species around the world. Warming has caused the temperatures in lakes and rivers to increase and stay elevated for longer periods of time. Select the FOUR numbers that describe the possible effects of global warming on the reproduction of rainbow trout in the wild and on biodiversity. The extra set of chromosomes remains. The extra set of chromosomes is removed. The offspring are diploid (2n). The offspring are triploid (3n). The offspring cannot reproduce. The offspring can reproduce. Biodiversity decreases. Biodiversity increases. Please record the FOUR numbers in ascending order.Which of the following forms of reproductive isolation illustrates a prezygotic barrier to gene flow? O Species A forms hybrids with species B and the hybrids are able to breed back with either of the two parent species to produce healthy fertile offspring. O Two closely related birds, the lazuli bunting and indigo bunting, sing similar songs to attract mates and even though human ears can not distinguish them the females never make wrong choices in choosing who to mate with. O Two species of turtles living in a large lake have different ecological requirements and never interact. O Several species of corrals in a Honduras corral reef release gametes about the same time but inter- specific attraction of gametes does not occur. O All but one of these illustrates a type of prezygotic barrier to gene flow.You are studying two variations of banana slugs. They have similar coloration and live in the same habitat. Although they are physically able to mate, there are no offspring that survive embryologic development. What can you conclude about the banana slugs? * Pre-zygotic barriers have forced them to be separate species. They are in Hardy-Weinberg equilibrium. Microevolution is occurring in both variations. They are two separate species. Two species of toads are reproductively isolated due to the fact that one species mates in early summer and one in late summer. Both species of toads evolved from a common ancestor. What type of speciation occurred?* OAllopatric