Which of the following best explains the impact of these new selective pressures on the organisms involved? College Board AP Classroom Unit 7 Progress Check: MCQ Part C Qichen (1 of 18 ) Question 1 Two community service Specimen 1 Specimen 2 Specimen 3 Specimen 4, . Henslow's sparrow is a songbird found in North American grasslands. Which of the following best explains the divergence in morphology in the birds? Dark coat color provides camouflage to mice on the flow; therefore, mice with dark coats predation rate in that habitat. The researchers determined that the East lava flow population is not in Hardy-Weinberg equilibrium. Which of the following principles best justifies a claim that cheetahs, compared to other large cats, have a relatively low resilience to environmental perturbations? The increased air pollution of the nineteenth century due to the use of coal led to a darkening of surfaces from soot. C. Specimen 3 3.6-9b) results. Hunting in the nineteenth century has been blamed for a drastic reduction in the northern elephant seal population. Iridium is an element that is rare on Earth but commonly found in meteorites. Which of the following principles best justifies a claim that cheetahs, compared to other large cats, have a relatively low resilience to environmental perturbations? A. Interspecific competition caused the extinction of species 4 and 5. The darker backgrounds conferred a selective advantage to the black variety, as described by natural selection. 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 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. E1=E2=200GPa,1=2=12106/CA1=25mm2,A2=50mm2,L1=3m,L2=5m,=1mm. Given aerobic conditions and large amounts of lightning, amino acids will spontaneously form crude proteins. Scientists studying the fossils observed patterns of changing shell shape in the mollusks. Immigration of individuals from Metro Manila into the two populations, Which of the following best explains the trend shown in Figure 1? 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 mechanical properties and dimensions of the two bars are, E1=E2=200GPa,1=2=12106/CA1=25mm2,A2=50mm2,L1=3m,L2=5m,=1mm\begin{gathered} which of the following best provides evidence to support this claim? Based on the data in Table 1, which of the following best describes the relationship between the MC1R gene and coat color in the Carrizozo, New Mexico, rock pocket mouse population? 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. Both the larger population and the isolated population were maintained under identical conditions and allowed to mate randomly for another 20 generations. A. Which of these would be an appropriate null hypothesis to test related to whether meteorites hit the Earth 3.6 billion years ago? However, the distance between the rigid walls to which the two bars are attached was measured incorrectly, so that a misalignment of \bar{\delta} (exaggerated in Fig. Statistics and Probability questions and answers; College Board AP Classroom Unit 7 Controlled fires in counties 4 and 5 will lead to an increase in the sparrow population. The darker backgrounds conferred a selective advantage to the black variety, as described by natural selection. By 1940, most genetic variation for speed had been lost from the gene pool. 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. The following questions were not written by College Board and although they cover information outlined in the AP Biology Course and Exam Description the formatting 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 degree of relatedness is inversely proportional to genetic diversity; that is, populations with a high degree of relatedness have less genetic diversity. (b)(b)(b) How much torque is required to stop it in 6.0s?6.0 \mathrm{~s} ?6.0s? To test their claim, they monitored 12 populations of E. coli for 10,000 generations under the same environmental conditions. (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 ? By the end of the twentieth century, the peppered version of the moth was again more common than the black version. A famous study from the nineteenth century involves the peppered moth, Biston betularia, commonly found in Great Britain and Ireland. The researchers wish to increase the reliability of their experimental observations before investigating new claims that chemotherapy-resistant tumors are an example of continuing evolution. Which of the following principles best justifies a claim that cheetahs, compared to other large cats, have a relatively low resilience to environmental perturbations? By the end of the twentieth century, the peppered version of the moth was again more common than the black version. Most of the species found in the first static period will be absent in the second static period. A thermometer requires 1 min to indicate 98% of the response to a step input. C. The number of species present on Earth will equal the number of species on Earth before the last extinction. Which of the following best explains why the population is not in Hardy-Weinberg equilibrium? A. B. The SinoHimalayan fern, Lepisorus clathratus is widely distributed on the QinghaiTibetan plateau. B. (d) aluminum. 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. 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 current global warming trend is placing new selective pressures on the species involved in these relationships. After several generations, both groups of mice are given a new type of food that is harder to digest than the previous food. Which of the following best explains why the population is not in Hardy-Weinberg equilibrium? Which of the following best explains the mechanism that caused this speciation event in the giant kangaroo rats of population A? C. Restriction enzymes in the cytoplasm of the bacteria degrade linear DNA. Thoroughbred race horses are subject to intense artificial selection to produce faster-running horses. The two populations will show significant genetic differences because the founder effect will result in significant losses in diversity in the smaller population. Which of the following best describes the processes occurring between the mouse populations and their environments? Which of the following best predicts the effect of the enclosure on the O'Neill population? B. The species will undergo artificial selection, as the genes will adapt to warmer temperatures. 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. A group of researchers claim that chance events play an important role in the evolution of populations. D. The original habitat was tropical, which increased the rate of mutation and led to rapid diversification. Which of the following best predicts why the recombinant bacteria will fail to produce the eukaryotic protein? Based on the phylogenetic relationships shown in Figure 1, which of the following best explains the similarities exhibited by whales, bony fishes, and cartilaginous fishes? D. Specimen 4. A. The M4M4 and M5M5 populations have the lowest genetic diversity of all populations. These alleles code for glycoproteins that act as antigens on the red blood cells. Webanswer choices. One group is given food with an added substance that is known to be a mutagen. Add an additional treatment group to the experiment to measure the effectiveness of another insecticide (Insecticide #3) over several generations. Hunting in the nineteenth century has been blamed for a drastic reduction in the northern elephant seal population. Even though there are numerous mountains in the region, the climate on the mountains is too cold for the lizards to survive. John David Jackson, Patricia Meglich, Robert Mathis, Sean Valentine, PL-600: Microsoft Power Platform Solution Arc. There are two species of elephant seals: northern elephant seals, Mirounga angustirostris, found off the western coast of North America from Baja California to the Gulf of Alaska, and southern elephant seals, M. leonina, found in the southern oceans. In the presence of available energy and the absence of a significant quantity of atmospheric O2 simple proteins will form spontaneously from a mixture of amino acids. D. The group fed the mutagen will show a decrease in the ability to digest the new food, because the mutagen prevented natural selection from acting on them. There is no difference in iridium levels in sediments that were deposited on Earth 3.6 billion years old, compared to recent sediments. There will not be any new individuals with the aa genotype. After several generations, both groups of mice are given a new type of food that is harder to digest than the previous food. Observed modern extinction rates will resemble the rates found early in previous extinctions. Which of the following sets of data provides evidence that best supports common ancestry for organisms in all three domains? C. Humans and mice share a recent common ancestor that had the 5-TTAGGG-35-TTAGGG-3 repeat sequence in its telomeres. 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. Facts about the test: The AP Biology exam has 60 multiple choice questions and you will be given 1 hour Observed modern extinction rates will resemble the rates found early in previous extinctions. Continue treating the three insect populations with the same insecticides and determine whether their efficiencies decline significantly after several generations. A. WebIt is Monday morning, May 13, and you will be taking the AP Biology Exam. Geologic events such as mountain building can directly affect biodiversity. d) releasing chemicals that begin to break down food in the mouth. Many of these species rely on pollinators that migrate based on changes in day length and the position of the Sun. For a specific bike plus rider of total mass 78kg78 \mathrm{~kg}78kg, FD14.0NF_{\mathrm{~D} 1} \approx 4.0 \mathrm{~N}FD14.0N; and for a speed of 2.2m/s,FD21.0N2.2 \mathrm{~m} / \mathrm{~s}, F_{\mathrm{~D} 2} \approx 1.0 \mathrm{~N}2.2m/s,FD21.0N. Find at what slope angle \theta the bike and rider can coast downhill at a constant speed of 8.0m/s8.0 \mathrm{~m} / \mathrm{~s}8.0m/s. Two flat steel bars are supposed to be connected together by a pin at BBB, and the system is supposed to be stress free after the pin is inserted (see Fig.given). C. Random mating within each population D. The M4 and M5 populations have the lowest genetic diversity of all populations. D. The two populations will not show any differences because they originated from the same gene pool. In the preceding exercise, if the stick is moving in a direction along its length (like a properly thrown spear), how long will you measure its length to be? D. During the last few decades, tall buildings have been built around the woodlot, and species 3, 4, and 5 are shadeintolerant plants. False. The darker backgrounds conferred a selective advantage to the black variety, as described by natural selection. Start each population with a different species of bacteria to determine whether the same environment has an effect on genetic differentiation. Populations with little genetic diversity are less likely to contain individuals that can withstand different selective pressures. 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 would be an appropriate alternative hypothesis? The genotypes BB and Bb result in dark-colored fur, the genotype bb results in light-colored fur. Based on the phylogenetic relationships shown in Figure 1, which of the following best explains the similarities exhibited by whales, bony fishes, and cartilaginous fishes? Based on the phylogenetic relationships shown in Figure 1, which of the following best explains the similarities exhibited by whales, bony fishes, and cartilaginous fishes? Observed modern extinction rates will resemble the rates found early in previous extinctions. Scientists claim that some of the populations in Marion County are at an increased risk of decline or extinction. The population was predominantly black throughout the nineteenth century. Both the larger population and the isolated population were maintained under identical conditions and allowed to mate randomly for another 20 generations. Continue treating the three insect populations with the same insecticides and determine whether their efficiencies decline significantly after several generations. A shift to less polluting fuel in the twentieth led to cleaner air and a lightening of the moth's normal habitat. C. The original habitat contained many predators, and the species diversified in order to avoid extinction. B. few individuals become isolated from a large population and establish a new small population with a gene pool that differs from the large population. General Instructions for your group. Make .sure .you .begin .the .exam .at .the .designated .time . . If you are giving the regularly scheduled exam, say: It is Monday morning, May 13, and you will be taking the AP Biology Exam. If you are giving the alternate exam for late testing, say: The warmer temperatures will lead to a drier environment, so the plants will no longer produce enough nectar to attract the pollinators. Suppose the average concentration of SO2\mathrm{SO}_{2}SO2 is measured to be 400g/m3400 \mu \mathrm{g} / \mathrm{m}^{3}400g/m3 at 25C25^{\circ} \mathrm{C}25C and 1 atm. 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. Implement function distribution() that takes as input the name of a file (as a string). C. 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. During the last few decades, tall buildings have been built around the woodlot, and species 3, 4, and 5 are shadeintolerant plants. B. Click the card to flip Geographic isolation will create separate gene pools, 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. WebAp Bio Unit 7 Progress Check Mcq Answers. 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. 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 animals in population A were exposed to different predators and had to modify their fur color to be better camouflaged. The frequency of the BB allele will increase because light-colored individuals will be more visible to predators. If a fire caused the surface of the ground in the habitat of the species to become darker in color, which of the following claims about the impact on the allele frequencies in this population is most reasonable? B. natural Select the best alternate hypothesis to support this claim. Which of the specimens indicated in the table is the oldest? To test their claim, they monitored 12 populations of E. coli for 10,000 generations under the same environmental conditions. The frequency of homozygous recessive individuals will increase because light-colored fur absorbs less heat. Convergent evolution, because these organisms do not share a recent common ancestor. D. Mice utilized the 5-TTAGGG-35-TTAGGG-3 telomeric repeat sequence first, but the sequence independently evolved in humans as well. In an experiment, the scientist creates two groups of twenty highly inbred mice. 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. At this same instant, the disk is spinning at a constant rate 2=4rad/s\omega_2=4 \mathrm{rad} / \mathrm{s}2=4rad/s, measured relative to the rod. Because the mice are highly inbred, they are essentially identical to one another. WebView AP Biology Unit 7 Evolution; MCQ Questions 1.pdf from BIOLOGY 101 at Oakland High School, Oakland. Both groups of mice will show an increase in the ability to digest the new food, because they experienced the same selective pressures. Thoroughbred race horses are subject to intense artificial selection to produce faster-running horses. 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 is an alternative hypothesis that can be tested to support the RNARNA World Hypothesis? D. Populations with low genetic diversity are more likely to contain individuals that can withstand different selective pressures. A. Convergent evolution, because these organisms do not share a recent common ancestor. 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. This one-line file will contain letter grades separated by blanks.Your function should print the distribution of grades, as shown. Cells with flagella were better able to find food and escape predators. During the last few decades, tall buildings have been built around the woodlot, and species 3, 4, and 5 are shadeintolerant plants. WebA. Iridium is an element that is rare on Earth but commonly found in meteorites. Which of the following represents an alternate hypothesis tested by this experiment with regard to the population sizes of Henslow's sparrows? A. Because the mice are highly inbred, they are essentially identical to one another. AP Biology Scoring Guide Unit 7 Progress Check: MCQ Part A 14. Consider the hypothetical molecule B - A = B. Based on the data in table 1, which of the following best provides evidence to support this claim? If a fire caused the surface of the ground in the habitat of the species to become darker in color, which of the following claims about the impact on the allele frequencies in this population is most reasonable? Populations J1 through J5 are located in Jasper County. 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 ? A. These building blocks combined to form polymers, such as crude proteins. C. If a sediment layer that is 3.6 billion years old is tested, it will contain organic material. D. The black variety was a nineteenth century mutation, dominant to the peppered variety. Which of the following best explains the mechanism that caused this speciation event in the giant kangaroo rats of population A? Which statement below best states an alternative hypothesis Fox could have used to frame his research? C. The species will experience a genetic bottleneck, and sympatric speciation will result in the development of several new species. The geneticist determines the genotypes for a particular trait of all of the mice in the population during generation 1 and then removes all of the mice with the genotype aa. D. Most of the species found in the second static period will resemble each other more than the species found in the first static period. Some scientists propose that due to human activity and climate change, a sixth mass extinction has already begun. Figure 1 shows the phylogeny of the birds. Scientists interested in the relationship among vision, foraging for food, and fitness studied three isolated populations of a small species of primate whose A. C. 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. C. Black Circle, grey box, and white triangle. White circle, grey circle and black circle. True D. In response to different environments, populations A and B experienced different mutation rates, leading to the emergence of two different gene pools and, over time, new species A and B. The liver helps the circulatory system by _________. B. Ap biology unit 1 test answers - anfk. The scientists identified a period of stability or stasis, followed by rapid change, and then stasis again with regard to shell shape. Which of the following represents an alternate hypothesis tested by this experiment with regard to the population sizes of Henslow's sparrows? B. Which of the following best predicts the impact on the lizard species if there is a gradual increase in the average temperatures found in both the lowlands and mountains in this region? Which of the following best predicts the impact on the lizard species if there is a gradual increase in the average temperatures found in both the lowlands and mountains in this region? Select the best alternate hypothesis to support this claim. protein template that matches proteins found on the primitive Earth added to a mixture of deoxyribonucleotides will produce double-stranded DNA molecules. Henslow's sparrow populations came to a peak in the mid1900s. Human activities can drive changes in ecosystems that affect the risk of extinction. Which of the following is closest to the frequency of the MC1RDMC1RD allele in the Tule Mountain population? Populations M1 through M5 are located in Marion County. 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. C. Most of the species found in the first static period will be absent in the second static period. Which of the following would be an appropriate alternative hypothesis? The darker backgrounds conferred a selective advantage to the black variety, as described by natural selection. Immigration of individuals from Metro Manila into the two populations. White circle, grey circle and black circle. Click the card to The frequency of the B allele will increase because light-colored individuals will be more visible to predators. Over time, populations A and B developed into two distinct species. Human activities can drive changes in ecosystems that affect the risk of extinction. Telomeres consist of hundreds or thousands of repeats of the same short DNA sequence, which varies between organisms. A shift to less polluting fuel in the twentieth led to cleaner air and a lightening of the moth's normal habitat. Which of the following predicts the expected outcome of the experiment? Based on the data in Table 1, which of the following best describes the relationship between the MC1R gene and coat color in the Carrizozo, New Mexico, rock pocket mouse population? WebDownload free-response questions from past AP Biology exams, along with scoring guidelines, sample responses from exam takers, and scoring distributions. Which of the following sets of data provides evidence that best supports common ancestry for organisms in all three domains? Most of the species found in the first static period will be absent in the second static period. Dark color is selected for in mice from the West, Mid, and East populations. Which of the following best predicts the effect of the enclosure on the O'Neill population? Which of the following student claims is best supported by the data provided? A scientist maintains a large population of the fruit fly Drosophila affinis in the laboratory. Scientists are concerned that the lowlands will become much warmer by the end of the twenty-first century and will become unsuitable for this lowland lizard 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? Which of the following predicts the expected outcome of the experiment? Take a look at the Intro to Unit 7. These building blocks combined to form polymers, such as crude proteins. z=ycos(xy),(2,2,2)z=y \cos (x-y), \quad(2,2,2)z=ycos(xy),(2,2,2), Write the electron configuration of the ion. Which of the following is an alternative hypothesis that can be tested to support the RNA World Hypothesis? D. Cells with mitochondria were able to utilize metabolic energy more efficiently. Which of the following best describes what occurred during the periods indicated by the arrows? A. Specimen 1 C. The frequency of the MC1RDMC1RD allele will decline due to natural selection. A scientist is studying the impact of mutagens on genetic variation in mice. Continue treating the three insect populations with the same insecticides and determine whether their efficiencies decline significantly after several generations. Cells with mitochondria were able to utilize metabolic energy more efficiently. C. Most of the species found in the first static period will be absent in the second static period. The presence of MC1Rd alleles in the East lava flow population is an indication of gene flow from mice populations living on light granite rocks. D. By 1940, most genetic variation for speed had been lost from the gene pool. Models of a prokaryote, first eukaryotic common ancestor, and last eukaryotic common ancestor. The allele for the peppered trait, being recessive, decreased in frequency. Start each population with genetically identical bacterial cells from a single culture to make sure that the initial genetic variation in all of the populations was exactly the same. D. Controlled fires in counties 4 and 5 will lead to an increase in the sparrow population. 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. describes how the L. clathratus population would be affected? 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 Organisms in Bacteria, Archaea, and Eukarya each have adenine, thymine, guanine, and cytosine bases forming their DNA. Figure 1 shows the phylogeny of the birds. Are the following statements true or false? Which of the following best describes the processes occurring between the mouse populations and their environments? The scientists identified a period of stability or stasis, followed by rapid change, and then stasis again with regard to shell shape. The population was predominantly black throughout the nineteenth century. Some scientists propose that due to human activity and climate change, a sixth mass extinction has already begun. Controlled fires in counties 4 and 5 will lead to an increase in the sparrow population. Geographic isolation will create separate gene pools, leading to speciation over time. Which of the following sets of data provides evidence that best supports common ancestry for organisms in all three domains? 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? The original habitat had many available unoccupied ecological niches that were colonized by populations of the original species. A scientist believes that the first organic molecules may have come to Earth on meteorites 3.6 billion years ago. Which of the following student claims is best supported by the data provided? A group of researchers claim that chance events play an important role in the evolution of populations. 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. 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?