Unit 4 Chapters 7 & 8 Attitude and Attitude C, John David Jackson, Patricia Meglich, Robert Mathis, Sean Valentine, David N. Shier, Jackie L. Butler, Ricki Lewis. white circle, grey circle, black circle, John David Jackson, Patricia Meglich, Robert Mathis, Sean Valentine, Dental Radiography 5th Ed Ch 14 - Legal Issue. WebAP BIO COLLEGE BOARD UNIT 7 4.9 (42 reviews) Geologic events such as mountain building can directly affect biodiversity. The two populations will show significant genetic differences because the founder effect will result in significant losses in diversity in the smaller population. The frequency of the MC1RDMC1RD allele will decline due to natural selection. To test their claim, they monitored 12 populations of E. coli for 10,000 generations under the same environmental conditions. The M4M4 and M5M5 populations have the lowest genetic diversity of all populations. There will be no difference in the populations observed in the controlled fire sites and the rest of counties 5 and 6. Which statement below best states an alternative hypothesis Fox could have used to frame his research? A model of the investigation is shown in Figure 1. Which of these would be an appropriate null hypothesis to test related to whether meteorites hit the Earth 3.6 billion years ago? WebAP Biology Scoring Guide Unit 7 Progress Check: MCQ Part A 2. The SinoHimalayan fern, Lepisorus clathratus is widely distributed on the QinghaiTibetan plateau. After 20 generations of allowing this population of about 1000 flies to mate randomly, 10 females and 10 males were isolated from the rest of the population. In an experiment, the scientist creates two groups of twenty highly inbred mice. Geographic isolation will create separate gene pools, leading to speciation over time. Controlled fires in counties 4 and 5 will lead to an increase in the sparrow population. C. The original habitat contained many predators, and the species diversified in order to avoid extinction. Over time, a new Some scientists propose that due to human activity and climate change, a sixth mass extinction has already begun. The group of mice fed the mutagen will show a greater ability to digest the food, because the higher genetic variation within the group makes it more likely that some individuals will have a combination of genes better adapted to the new food. The degrees of relatedness in several native populations of prairie chickens in Marion and Jasper Counties in Illinois were determined. WebAp Bio Unit 7 Progress Check Mcq Answers. Which of these would be an appropriate null hypothesis to test related to whether meteorites hit the Earth 3.6 billion years ago? WebDownload free-response questions from past AP Biology exams, along with scoring guidelines, sample responses from exam takers, and scoring distributions. A. Which of the following sets of data provides evidence that best supports common ancestry for organisms in all three domains? A scientist wishes to provide experimental evidence to support the model shown in Figure 1 by demonstrating the ability to synthesize an RNARNA molecule. a) filtering blood of harmful substances. Because cheetahs, Acinonyx jubatus, experienced a bottleneck event about ten thousand years ago, living cheetahs exhibit very little genetic variation compared to other living species of large cats. D. The M4 and M5 populations have the lowest genetic diversity of all populations. An experiment is designed to help prevent the further decline and extinction of the Henslow's sparrow in which controlled burns will be set in the each of the ten Midwest counties in order to prevent the regrowth of the forest. Consider the circuit in the given figure with resistors R1=2500,R2=4500R_1=2500 \Omega, R_2=4500 \OmegaR1=2500,R2=4500, and R3=1200R_3=1200 \OmegaR3=1200, and batteries with emfs E1=6.5V\mathcal{E}_1=6.5 \mathrm{~V}E1=6.5V and E2=1.3V\mathcal{E}_2=1.3 \mathrm{~V}E2=1.3V. What is the magnitude of the current in the circuit? B. Even though the population has rebounded following restrictions on seal hunting, genetic variation is greatly reduced in the northern species compared to that in the southern species. A. B. Specimen 2 B. The darker backgrounds conferred a selective advantage to the black variety, as described by natural selection. The frequencies of the different phenotypes in the moth population changed randomly due to genetic drift. A . After the 20 generations, DNA sequencing was used to determine the genetic composition of each population. Which of the following best describes the expected distribution of proboscis size of the moths at the end of the fiveyear study? The second group is fed the same food without the mutagen. Geographic isolation will create separate gene pools, leading to speciation over time. A mixture of ribonucleotides such as adenine and uracil will spontaneously form single-stranded chains of RNA . Which of the following statements includes a reasonable refinement that researchers could use in repeating the experiment? WebAP Biology Unit 7 MCQ B Term 1 / 18 Which of the following sets of data provides evidence that best supports common ancestry for organisms in all three domains? A. C. During the nineteenth century, increased ship commerce between Great Britain and Ireland facilitated the gene flow of the black variety, spreading it throughout the moth's normal range. The frequency of the MC1RD allele will decline due to natural selection. The researchers built an enclosure to prevent migration into and out of the O'Neill rock pocket mouse population for a period of two years. The frequency of the B allele will increase because light-colored individuals will be more visible to predators. WebAP Biology Unit 7 Progress Check Which of the following best describes the processes occurring between the mouse populations and their environments? (b) hydrogen Because the mice are highly inbred, they are essentially identical to one another. D. Bacteria and eukaryotes use different mRNA codons for the same amino acids during translation. At the given instant, the rod is spinning about the zzz axis with an angular velocity 1=8rad/s\omega_1=8 \mathrm{rad} / \mathrm{s}1=8rad/s and angular acceleration 1=2rad/s2\dot{\omega}_1=2 \mathrm{rad} / \mathrm{s}^21=2rad/s2. A dark coat color provides camouflage to mice on the lava flow rocks; therefore, mice with dark coats have a lower predation rate in that habitat. They found that although all 12 populations were exposed to the same environmental pressures, each population had differentiated from one another genetically after 10,000 generations. Which of the following represents an alternate hypothesis tested by this experiment with regard to the population sizes of Henslow's sparrows? B. B. relationship between the MC1R gene and coat color in the Carrizozo, New Mexico, rock pocket mouse population? The genotypes BB and Bb result in dark-colored fur, the genotype bb results in light-colored fur. Some lizards will migrate to new habitats in the mountains and become isolated, leading to allopatric speciation. C. Controlled fires in counties 6 and 8 will have no effect on the sparrow populations. B. The original habitat had many available unoccupied ecological niches that were colonized by populations of the original species. BIO 1- CH. Which of the following best explains the divergence in morphology in the birds? The second group is fed the same food without the mutagen. A_1=25 \mathrm{~mm}^2, \quad A_2=50 \mathrm{~mm}^2, \quad L_1=3 \mathrm{~m}, \\ D. The original habitat was tropical, which increased the rate of mutation and led to rapid diversification. The increased air pollution of the nineteenth century due to the use of coal led to a darkening of surfaces from soot. Hunting in the nineteenth century has been blamed for a drastic reduction in the northern elephant seal population. D. In the presence of available energy and the absence of a significant quantity of atmospheric O2O2 simple proteins will form spontaneously from a mixture of amino acids. A group of scientists found that in one population the frequency of the M allele was 0.82, and the frequency of the N allele was 0.18. C. Humans and mice share a recent common ancestor that had the 5-TTAGGG-35-TTAGGG-3 repeat sequence in its telomeres. A mixture of ribonucleotides such as adenine and uracil will spontaneously form single-stranded chains of RNA . Geographic isolation will create separate gene pools, leading to speciation over time. B. Dark coat color provides camouflage to mice on the flow; therefore, mice with dark coats predation rate in that habitat. The plant species will flower earlier in the spring in response to rising temperatures before the arrival of the pollinators, so seeds will not be produced. The darker backgrounds conferred a selective advantage to the black variety, as described by natural selection. Natural selection acted on variation that was present in both populations A and B, and the lack of gene flow eventually led to the formation of two new species. Cells with nuclear membranes were better able to protect their genetic material against damage. A group of birds is found in an island chain that have all descended from a single ancestral species. Natural selection acted on variation that was present in both populations A and B, and the lack of gene flow eventually led to the formation of two new species. Select the best alternate hypothesis to support this claim. In an exercise to understand how genetically controlled physical traits could affect speciation, a theoretical population was imagined that contained organisms with three shapes and three levels of pigmentation, as illustrated in Figure 1. A. This one-line file will contain letter grades separated by blanks.Your function should print the distribution of grades, as shown. Which of the following statements best predicts the result of a comparison between the fossils found before and after the period of rapid change? A population geneticist is conducting an investigation on a population of mice. Which of the following predicts the expected outcome of the experiment? The scientists identified a period of stability or stasis, followed by rapid change, and then stasis again with regard to shell shape. A. Specimen 1 Based on the information provided in the figure, which of the following best describes how membrane-bound organelles provided unique evolutionary advantages to the last eukaryotic common ancestor? WebStatistics and Probability questions and answers. Whales, bony fishes, and cartilaginous fishes all have similar adaptations that enable them to live in the ocean. A. WebLearn about unit 7 of AP Biology as we cover topics such as artificial selection, population genetics, hardy-weinberg equilibrium, evidence of evolution, common ancestry, continuing D. Cells with mitochondria were able to utilize metabolic energy more efficiently. Natural selection acted on variation that was present in both populations A and B, and the lack of gene flow eventually led to the formation of two new species. The animals in population A were reproductively isolated from those in populations B, C, and D. Which of the following statements best predicts the result of a comparison between the fossils found before and after the period of rapid change? Which of the following best explains the divergence in morphology in the birds? Some researchers claim that the decrease in plant species richness of this woodlot is unrelated to human activities over the last forty years. Take a look at the Intro to Unit 7. protein template that matches proteins found on the primitive Earth added to a mixture of deoxyribonucleotides will produce double-stranded DNA molecules. By 1940, most genetic variation for speed had been lost from the gene pool. To prevent the loss of genes as chromosome ends wear down during DNA replication, the tips of eukaryotic chromosomes have specialized DNA "caps" called telomeres. few individuals become isolated from a large population and establish a new small population with a gene pool that differs from the large population. Bacteria and eukaryotes use different mRNA codons for the same amino acids during translation. B. The animals in population A were reproductively isolated from those in populations B, C, and D. Which of the following statements best predicts the result of a comparison between the fossils found before and after the period of rapid change? The allele for the peppered trait, being recessive, decreased in frequency. This preview shows page 1 out of 1 page. AP Biology Scoring Guide Unit 7 Progress Check: MCQ Part A Copyright 2017. The College Board. These materials are part of a College Board program. Use or distribution of these materials online or in print beyond your schools participation in the program is prohibited. Humans and mice share a recent common ancestor that had the 5-TTAGGG-3 repeat sequence in its telomeres. D. Spray these insecticides on a different species of insect (whose genotypes are also known) to determine its effectiveness on insects that are not pests. Which of the following would most likely represent the types of individuals found in one of the species resulting from shape becoming a prezygotic isolating mechanism in the initial population represented in Figure 1 ? D. Specimen 4. Which of the following best describes the processes occurring between the mouse populations and their environments? Continue treating the three insect populations with the same insecticides and determine whether their efficiencies decline significantly after several generations. B. A captive population of cheetahs kept in a confined area will have a greater risk of contracting and passing on a virus. Which of the following best explains the relationship between coat color and predation rate in the rock pocket mouse population on the lava flow rocks with respect to the different coat color phenotypes? Organisms in Bacteria, Archaea, and Eukarya each have adenine, thymine, guanine, and cytosine bases forming their DNA. Populations with little genetic diversity are less likely to contain individuals that can withstand different selective pressures. D. Migrating pollinators will start migrating later in the year, switching from spring-flowering plants to summer-flowering plants. Assuming that the population is in HardyWeinberg equilibrium, which of the following is the expected frequency of individuals with the genotype MNMN? The remaining members of the population are allowed to randomly mate with one another to produce generation 2 and future generations. There is no difference in iridium levels in sediments that were deposited on Earth 3.6 billion years old, compared to recent sediments. (a)(a)(a) What is the angular momentum of a 2.8kg2.8 \mathrm{~kg}2.8kg uniform cylindrical grinding wheel of radius 28cm28 \mathrm{~cm}28cm when rotating at 1300rpm1300 \mathrm{rpm}1300rpm ? One group is given food with an added substance that is known to be a mutagen. True The woodlot environment is arid and species 1 and 2 are well-adapted to conserve water. The original habitat had many available unoccupied ecological niches that were colonized by populations of the original species. Based on the data in Table 1, which of the following best describes the relationship between the MC1RMC1R gene and coat color in the Carrizozo, New Mexico, rock pocket mouse population? D. Large population size. Populations M1 through M5 are located in Marion County. Which of the following best explains the mechanism that caused this speciation event in the giant kangaroo rats of population A? B. Students created a model showing one possible mechanism for speciation in which a geographic barrier separated one large population into two smaller populations, A and B. Because cheetahs, Acinonyx jubatus, experienced a bottleneck event about ten thousand years ago, living cheetahs exhibit very little genetic variation compared to other living species of large cats. Based on the data in table 1, which of the following best provides evidence to support this claim? Many of these species rely on pollinators that migrate based on changes in day length and the position of the Sun. D. Populations with low genetic diversity are more likely to contain individuals that can withstand different selective pressures. D. By 1940, most genetic variation for speed had been lost from the gene pool. The scientists identified a period of stability or stasis, followed by rapid change, and then stasis again with regard to shell shape. Double strands of DNA placed in a harsh environment will unwind and form RNA molecules for long term information storage. The researchers determined that the East lava flow population is not in Hardy-Weinberg equilibrium. C. Random mating within each population A scientist wishes to provide experimental evidence to support the model shown in Figure 1 by demonstrating the ability to synthesize an RNA molecule. Which of the following best explains the trend shown in Figure 1? Natural selection acted on variation that was present in both populations A and B, and the lack of gene flow eventually led to the formation of two new species. Convergent evolution, because these organisms do not share a recent common ancestor. Continue treating the three insect populations with the same insecticides and determine whether their efficiencies decline significantly after several generations. Immigration of individuals from Metro Manila into the two populations. The darker backgrounds conferred a selective advantage to the black variety, as described by natural selection. In addition to the ABO blood groups, humans have an MN blood type system in which the M and N alleles are codominant to one another. Figure 1 shows the phylogeny of the birds. Prepare flowcharting segments for each of the following operations: d. Using a terminal to enter paper-based source document data and send it to a remote location where a corporate computer updates the company database. A. Migration of individuals between the Isabela and Butuan populations B. AP Biology Scoring Guide Unit 7 Progress Check: MCQ Part A 1. Ca2+^{2+}2+, The following elements are among the five most abundant by mass in the Earth's crust, seawater, and atmosphere except, (a) oxygen C. Set up a new experiment in which these insects are sprayed with two different insecticides to see if they are more effective than Insecticides #1 and #2. Absence of selection These building blocks combined to form polymers, such as crude proteins. 19 Attempt 2: Communities & Ecosys, Teaching and Learning Across the Lifepsan. A shift to less polluting fuel in the twentieth led to cleaner air and a lightening of the moth's normal habitat. Assuming the thermometer to be a first-order system, find the time constant. The switch to increased transport by planes during the twentieth century reduced this gene flow. Some scientists propose that due to human activity and climate change, a sixth mass extinction has already begun. Some lizards will migrate to new habitats in the mountains and become isolated, leading to allopatric speciation. Which of the following sets of data provides evidence that best supports common ancestry for organisms in all three domains? The genotypes BB and Bb result in dark-colored fur, the genotype bb results in light-colored fur. Which of the following best explains the phenotypic pattern in the moths over time? B. D. The presence of MC1RdMC1Rd alleles in the East lava flow population is an indication of gene flow from mice populations living on light granite rocks. Based on the information provided in the figure, which of the following best describes how membrane-bound organelles provided unique evolutionary advantages to the last eukaryotic common ancestor? C. The species will experience a genetic bottleneck, and sympatric speciation will result in the development of several new species. A scientist believes that the first organic molecules may have come to Earth on meteorites 3.6 billion years ago. Are the following statements true or false? Scientists interested in the relationship among vision, foraging for food, and fitness studied three isolated populations of a small species of primate whose Future generations will eventually completely lose the a allele from the gene pool. Human activities can drive changes in ecosystems that affect the risk of extinction. The MC1RD allele is not responsible for dark coat color in the Carrizozo population, so the dark coat color is likely a result of convergent evolution. The warmer temperatures will lead to a drier environment, so the plants will no longer produce enough nectar to attract the pollinators. Which of the following conditions of Hardy-Weinberg equilibrium was most likely not met in the northern elephant seal population following overhunting? WebUnit 7 Progress Check: MCQ Part B 3.5 (202 reviews) Which of the following sets of data provides evidence that best supports common ancestry for organisms in all three