A small segment of the original population is exposed to different environmental conditions, and a new subspecies emerges through natural selection. A. 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. A shift to less polluting fuel in the twentieth led to cleaner air and a lightening of the moth's normal habitat. BIO 1- CH. (b)(b)(b) How much torque is required to stop it in 6.0s?6.0 \mathrm{~s} ?6.0s? Cattle and sheep are separated by only one node, and they are separated from the other organisms by more than one node. A group of birds is found in an island chain that have all descended from a single ancestral species. Because the mice are highly inbred, they are essentially identical to one another. B. Cells with mitochondria were able to utilize metabolic energy more efficiently. Immigration of individuals from Metro Manila into the two populations Which of the following is an alternative hypothesis that can be tested to support the RNA World Hypothesis? 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. If you are giving the alternate exam for late testing, say: It is Friday afternoon, May 24, and you will be D. By 1940, most genetic variation for speed had been lost from the gene pool. 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 describes the processes occurring between the mouse populations and their environments? This one-line file will contain letter grades separated by blanks.Your function should print the distribution of grades, as shown. There are autotrophic and heterotrophic organisms found in Bacteria, Archaea, and Eukarya. D. Specimen 4. C. Most of the species found in the first static period will be absent in the second static period. Controlled fires in counties 4 and 5 will lead to an increase in the sparrow population. B. A. The animals in population A were reproductively isolated from those in populations B, C, and D. Mollusk fossils were excavated and collected from a coastal cliff. The frequency of the MC1RDMC1RD allele will decline due to natural selection. C. Start each population with bacterial cells that have different genotypes to make sure there is enough genetic variation for selection to occur. 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? The SinoHimalayan fern, Lepisorus clathratus is widely distributed on the QinghaiTibetan plateau. The woodlot environment is arid and species 1 and 2 are well-adapted to conserve water. Some lizards will migrate to new habitats in the mountains and become isolated, leading to allopatric speciation. 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 logging industry created vast meadow habitats for the sparrow in the late 1800s. A captive population of cheetahs kept in a confined area will have a greater risk of contracting and passing on a virus. 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 specimens indicated in the table is the oldest? The telomeric repeat sequences for selected organisms are given in Table 1. D. Cattle and sheep are separated by only one node, and they are separated from the other organisms by more than one node. However, an additional mutation in the black allele changed it from a dominant to a recessive allele at the turn of the twentieth century, leading to a return to the dominance of the original peppered variety. 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. C. Restriction enzymes in the cytoplasm of the bacteria degrade linear DNA. B. 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. Which of the following best explains the trend shown in Figure 1? C. Dark color is selected for in mice from the West, Mid, and East Populations. Of the following, which is the best next step for the researchers to best determine the long-term effectiveness of these insecticides with regards to the development of resistance? Over time, populations A and B developed into two distinct species. The frequency of the MC1RD allele will decline due to natural selection. C. Organisms in Bacteria, Archaea, and Eukarya each have adenine, thymine, guanine, and cytosine bases forming their DNA. Cells with mitochondria were able to utilize metabolic energy more efficiently. Most of the species found in the first static period will be absent in the second static period. The darker backgrounds conferred a selective advantage to the black variety, as described by natural selection. 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. 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. A. Which statement below best states an alternative hypothesis Fox could have used to frame his research? A. Numbers above 0.125 indicate a high degree of relatedness. In an experiment, the scientist creates two groups of twenty highly inbred mice. The increased air pollution of the nineteenth century due to the use of coal led to a darkening of surfaces from soot. Ap biology unit 1 test answers - anfk. 19 Attempt 2: Communities & Ecosys, Teaching and Learning Across the Lifepsan. 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? WebAp Bio Unit 7 Progress Check Mcq Answers. 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. Observed modern extinction rates will resemble the rates found early in previous extinctions. Which of the following student claims is best supported by the data provided? 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. After several generations, both groups of mice are given a new type of food that is harder to digest than the previous food. Increasing the number of trials and the number of mice in each treatment group. A. The same species will be found in both static periods, but the species in the second static period will have smaller shells due to the stress of undergoing rapid change. There is a progression of pathways in organisms found in Bacteria, Archaea, and Eukarya. 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. A famous study from the nineteenth century involves the peppered moth, Biston betularia, commonly found in Great Britain and Ireland. Both groups of mice will show an increase in the ability to digest the new food, because they experienced the same selective pressures. The telomeric repeat sequences for selected organisms are given in Table 1. Neither group of mice will show any change in the ability to digest the food because thousands of years are required to develop such a change. B. 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 scientists identified a period of stability or stasis, followed by rapid change, and then stasis again with regard to shell shape. A. B. B. Dr. Sidney Fox wished to add to the heterotroph hypothesis of the origin of life by synthesizing simple proteins from a mixture of amino acids. Which of the following is closest to the frequency of the MC1RD allele in the Tule Mountain population? The frequency of the BB allele will increase because light-colored individuals will be more visible to predators. Some lizards will migrate to new habitats in the mountains and become isolated, leading to allopatric speciation. C. Populations with little genetic diversity are less likely to contain individuals that can withstand different selective pressures. John David Jackson, Patricia Meglich, Robert Mathis, Sean Valentine, PL-600: Microsoft Power Platform Solution Arc. A. Convergent evolution, because these organisms do not share a recent common ancestor. C. The animals in population A accumulated fewer genetic mutations, adapting to their microclimate. B. Webanswer choices. 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. 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} B. The genotypes BB and Bb result in dark-colored fur, the genotype bb results in light-colored fur. If sediment layers that are 3.6 billion years old are tested, they will contain relatively high iridium levels, because that is when many meteorites crashed into the Earth. Populations M1 through M5 are located in Marion County. The second group is fed the same food without the mutagen. If the gage reads a pressure differential of 4kPa4\ \mathrm{kPa}4kPa, find the flow rate of ammonia through the pipe, and the average flow velocity. Does this exceed the (24-hr) air quality standard of 0.14 ppm? The original habitat had many available unoccupied ecological niches that were colonized by populations of the original species. A scientist is studying the impact of mutagens on genetic variation in mice. Which of the specimens indicated in the table is the oldest? The SinoHimalayan fern, Lepisorus clathratus is widely distributed on the QinghaiTibetan plateau. Which of the following best explains the mechanism that caused this speciation event in the giant kangaroo rats of population A? There is no difference in iridium levels in sediments that were deposited on Earth 3.6 billion years old, compared to recent sediments. 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. A shift to less polluting fuel in the twentieth led to cleaner air and a lightening of the moth's normal habitat. The two populations will show significant genetic differences because the founder effect will result in significant losses in diversity in the smaller population. To test their claim, they monitored 12 populations of E. coli for 10,000 generations under the same environmental conditions. After the 20 generations, DNA sequencing was used to determine the genetic composition of each population. Continue treating the three insect populations with the same insecticides and determine whether their efficiencies decline significantly after several generations. 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. In a certain small mammal, fur color is controlled by a pair of alleles, with B being dominant over b. WebIt is Monday morning, May 13, and you will be taking the AP Biology Exam. White circle, grey circle and black circle. (b) hydrogen The original habitat had many available unoccupied ecological niches that were colonized by populations of the original species. The two populations will show significant genetic differences because the founder effect will result in significant losses in diversity in the smaller population. a) filtering blood of harmful substances. Assuming that the population is in HardyWeinberg equilibrium, which of the following is the expected frequency of individuals with the genotype MNMN? Geographic isolation will create separate gene pools, leading to speciation over time. (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 ? Each of the fifteen genotypes shown in generation 1 and generation 2 represents 100 mice. A. Future generations will eventually completely lose the a allele from the gene pool. B. Bacterial ribosomes cannot recognize eukaryotic mRNA and will not translate the codon sequence. Which of the following best predicts the effect of the enclosure on the O'Neill population? Consider the hypothetical molecule B - A = B. A shift to less polluting fuel in the twentieth led to cleaner air and a lightening of the moth's normal habitat. These building blocks combined to form polymers, such as crude proteins. n 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. c) storing bile that is released into the bloodstream. Which of the following best explains why the population is not in Hardy-Weinberg equilibrium? Geologic events such as mountain building can directly affect biodiversity. A population geneticist is conducting an investigation on a population of mice. In an experiment, the scientist creates two groups of twenty highly inbred mice. Most of the species found in the first static period will be absent in the second static period. B. Which of the following is an alternative hypothesis that can be tested to support the RNA World Hypothesis? A scientist maintains a large population of the fruit fly Drosophila affinis in the laboratory. Which of the following student claims is best supported by the data provided? If the environment for the plant species becomes too warm, the pollinators will no longer migrate to that area in the spring, continuing on to a more northern environment instead. Iridium is an element that is rare on Earth but commonly found in meteorites. Which of the following is an alternative hypothesis that can be tested to support the RNA World Hypothesis? The original habitat had many available unoccupied ecological niches that were colonized by populations of the original species. Both the larger population and the isolated population were maintained under identical conditions and allowed to mate randomly for another 20 generations. Populations with little genetic diversity are less likely to contain individuals that can withstand different selective pressures. Scientists determined the frequencies of the M and N alleles in five localized and stable human populations in the Philippines, Immigration of individuals from Metro Manila into the two populations. 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. The researchers determined that the East lava flow population is not in Hardy-Weinberg equilibrium. Continue treating the three insect populations with the same insecticides and determine whether their efficiencies decline significantly after several generations. A. A. 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? The results of breeding programs can be seen in the change in winning times of the Kentucky Derby from 1880 to the present, as shown in Figure 1. True natural similarities exhibited by whales, bony fishes, and cartilaginous fishes? The darker backgrounds conferred a selective advantage to the black variety, as described by natural selection. Relationships of selected organisms based on catalase structure. The frequencies of the different phenotypes in the moth population changed randomly due to genetic drift. Select the correct answer for the following questions: Observed modern extinction rates will resemble the rates found early in previous extinctions. C. Random mating within each population Immigration of individuals from Metro Manila into the two populations, Which of the following best explains the trend shown in Figure 1? D. The lizards will hybridize with a different lizard species that is adapted to a warmer environment, leading to increased genetic variation in the species. 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. The darker backgrounds conferred a selective advantage to the black variety, as described by natural selection. L_2=5 \mathrm{~m}, \quad \bar{\delta}=1 \mathrm{~mm} 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. The frequency of the MC1RDMC1RD allele will decline due to natural selection. WebView AP Biology Unit 7 Evolution; MCQ Questions 14.pdf from BIOLOGY 101 at Oakland High School, Oakland. Which of the following predicts the expected outcome of the experiment? B. In an experiment, the scientist creates two groups of twenty highly inbred mice. Population B was separated for a longer time from the original population than population A was, and population B evolved into a more distinct new species than population A did. 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 animals in population A were reproductively isolated from those in populations B, C, and D. protein template that matches proteins found on the primitive Earth added to a mixture of deoxyribonucleotides will produce double-stranded DNA molecules. To test their claim, they monitored 12 populations of E. coli for 10,000 generations under the same environmental conditions. AP Biology Scoring Guide Unit 7 Progress Check: MCQ Part A 14. Catalase is a protein enzyme that catalyzes the breakdown of hydrogen peroxide (H2O2) into water and oxygen gas in the cells of many living organisms. One facet of the study of the origin of life focuses on the nature of the first genetic material. Select the best alternate hypothesis to support this claim. Which of the following statements includes a reasonable refinement that researchers could use in repeating the experiment? Dark coat color provides camouflage to mice on the flow; therefore, mice with dark coats predation rate in that habitat. D. Increased population sizes over time in the Isabela population, but no change in the Butuan population, B. D. The animals in population A mate at different times of year, causing their gametes to be incompatible with those from animals in populations B, C, and D. 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? d) releasing chemicals that begin to break down food in the mouth. Which of the following best explains the mechanism that caused this speciation event in the giant kangaroo rats of population A? The increased air pollution of the nineteenth century due to the use of coal led to a darkening of surfaces from soot. Based on the data in table 1, which of the following best provides evidence to support this claim? A scientist is studying the impact of mutagens on genetic variation in mice. Mushrooms and potatoes are most closely related, since the node they share gave rise to all of the other organisms. Which of the following principles best justifies a claim that cheetahs, compared to other large cats, have a relatively low resilience to environmental perturbations? D. The two populations will not show any differences because they originated from the same gene pool. relationship between the MC1R gene and coat color in the Carrizozo, New Mexico, rock pocket mouse population? 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. few individuals become isolated from a large population and establish a new small population with a gene pool that differs from the large population. Continue treating the three insect populations with the same insecticides and determine whether their efficiencies decline significantly after several generations. D. Mice utilized the 5-TTAGGG-35-TTAGGG-3 telomeric repeat sequence first, but the sequence independently evolved in humans as well. Which of the following principles best justifies a claim that cheetahs, compared to other large cats, have a relatively low resilience to environmental perturbations? Which of the following best describes the processes occurring between the mouse populations and their environments? Some plant species flower in response to increasing daily temperatures in the spring. The MC1RDMC1RD allele is not responsible for dark coat color in the Carrizozo population, so the dark coat color is likely a result of convergent evolution. Which of the following conditions of Hardy-Weinberg equilibrium was most likely not met in the northern elephant seal population following overhunting? 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. The heterotroph hypothesis of the origin of life states that basic organic building blocks formed from inorganic molecules under the primitive conditions present early in Earth's development. Statistics and Probability questions and answers; College Board AP Classroom Unit 7 During the last few decades, tall buildings have been built around the woodlot, and species 3, 4, and 5 are shadeintolerant plants. 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. Which of the specimens indicated in the table is the oldest? Some researchers claim that the decrease in plant species richness of this woodlot is unrelated to human activities over the last forty years. A. Quantitative Skills in the AP Sciences (2018) This reference guide is for students to use as they develop quantitative skills, such as using measurements, gathering and evaluating data, using quantitative evidence to support claims, and connecting empirical information to scientific theory, throughout the course. Curriculum Modules Download 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. Implement function distribution() that takes as input the name of a file (as a string). Start each population with a different species of bacteria to determine whether the same environment has an effect on genetic differentiation. 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. C. Humans and mice share a recent common ancestor that had the 5-TTAGGG-35-TTAGGG-3 repeat sequence in its telomeres. Which of the following best describes the processes occurring between the mouse populations and their environments? Take a look at the Intro to Unit 7. The second group is fed the same food without the mutagen. Scientists want to determine the age of | Course Hero. Dark color is selected for in mice from the West, Mid, and East populations. B. (b) Explain why some roofs are "blown outward" during high winds. D. The black variety was a nineteenth century mutation, dominant to the peppered variety. Which of the following best describes the expected distribution of proboscis size of the moths at the end of the fiveyear study? Table 1 shows the collected data. D. The number of species present on Earth will equal the number of species on Earth after the last extinction. Based on the data in table 1, which of the following best provides evidence to support this claim? Humans and mice have the same number of genes. 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. B. Because the mice are highly inbred, they are essentially identical to one another. Which of the following student claims is best supported by the data provided? The allele for the peppered trait, being recessive, decreased in frequency. Geographic isolation will create separate gene pools, leading to speciation over time. B. A population of the species has the following allele frequencies: B=0.85 and b=0.15. 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. Determine the velocity and acceleration of point PPP on the disk at this instant. Humans and mice share a recent common ancestor that had the 5-TTAGGG-3 repeat sequence in its telomeres. WebStatistics and Probability questions and answers. Many of these species rely on pollinators that migrate based on changes in day length and the position of the Sun. Which of the following best describes the processes occurring between the mouse populations and their environments? Over time, a new Scientists claim that some of the populations in Marion County are at an increased risk of decline or extinction. The darker backgrounds conferred a selective advantage to the black variety, as described by natural selection. Only males can inherit the color blindness condition. The animals in population A were exposed to different predators and had to modify their fur color to be better camouflaged. The density of air is I.29kg/m3\mathrm{I} .29 \mathrm{~kg} / \mathrm{m}^3I.29kg/m3. WebView AP Biology Unit 7 Evolution; MCQ Questions 1.pdf from BIOLOGY 101 at Oakland High School, Oakland. The liver helps the circulatory system by _________. 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. A scientist wishes to provide experimental evidence to support the model shown in Figure 1 by demonstrating the ability to synthesize an RNA molecule. Continue treating the three insect populations with the same insecticides and determine whether their efficiencies decline significantly after several generations. D. Populations with low genetic diversity are more likely to contain individuals that can withstand different selective pressures.