Which of the statements are true regarding hybridization? Select all that apply. Hybridization involves the transfer of genetic material between members of similar species. Natural selection sometimes acts against progeny that result from hybridization. Hybridization occurs in plants more often than in animals. Hybridization can result in fertile offspring. Hybridization cannot result in the formation of new species.

What are the properties of genetic material? Must encode information. The information must be used to direct the functioning of cellular processes. The information must be transmissible from generation to generation and from cell to cell. There must be the potential for mutation that can result in the physical variation that exists among individuals and between species. All the above are correct.

Researchers studied the effects of artificial selection on largemouth bass. The fish are bred in fisheries to have the desired trait of a high vulnerability rate (HVR) so they are easily caught by human anglers, and then released in artificial ponds and lakes that allow recreational fishing. Within three generations, a fishery can produce a population saturated with members that have the HVR trait in the study. Researchers compared the health of three groups of fish, as measured by the time it took them to recover after exercise: fish with HVR, fish with a low vulnerability rate (LVR), and a control group of wild fish. Each groups' cardiac output, heart rate, and stroke volume are represented in the graph. 85 80 75 70 65 60 55 50 Control LV HV Group of Fish Does the practice of artificial selection in fisheries of largemouth bass for a greater frequency of members with HVR affect the variability in their heart rate, and why? No, artificial selection produces fish with the HVR trait…

the choices are homogenization and speciation for all three

a) How many of the gene trees do you expect to look like the species tree? b)  You observe three gene trees in which species X and Z are the closest relatives and seven gene trees where X and Y are the closest relatives. What can you conclude from these data? Group of answer choices Historical hybridization between species W and X Historical hybridization between species X and Y Historical hybridization between species X and Z Historical hybridization between species Y and Z

Why is variation beneficial to the species but not necessarily for the individual?

Which part of these statements isn't right ?       A species is a group of organisms that can potentially interbreed with one another to produce viable, fertile offspring. Speciation is when two new species form from one original one. Sympatric speciation occurs when there is a geographic separation of a population. Allopatric speciation occurs while the population remains in the same area. Adaptive radiation occurs when one species evolves into many to fill several different niches. Natural selection requires traits to be passed from parent to offspring, more offspring are produced than can survive creating competition, and inherited traits vary among offspring. Fossils, Anatomy and embryology, biogeography, and molecular biology all provide support for the theory of evolution. Evolution can be driven by many different things. Mutations are changes in DNA that create new alleles in a population. Gene flow is the flow of alleles in and out of a population resulting from the migration…

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Which reproductive barrier is most likely to prevent interbreeding between a polyploid species and its diploid sister species? Behavioral isolation: the two species will not recognize each other as mates O Gametic isolation: sperm and egg with different chromosome numbers cannot complete fertilization Hybrid infertility: differences in chromosome numbers will result in infertile hybrids O Mechanical isolation: differences in reproductive structures will prevent interbreeding O Temporal isolation: the two species will not reproduce at the same time of year

Think about the ways we define/identify a species. What would the least precise way to determine a living species (so not extinct)? O groups of organisms that look alike O groups of organisms that are geographically separated for a significant period of time such that they become distinct genetically separate populations with different genetic markers groups of potentially interbreeding populations with are reproductively isolated from others