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. HardyWeinberg equilibrium, which of the following is the expected frequency of individuals with the genotype MN? B. B. 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? Populations with little genetic diversity are less likely to contain individuals that can withstand different selective pressures. Figure 1. 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. After several generations, both groups of mice are given a new type of food that is harder to digest than the previous food. The genotypes BB and Bb result in dark-colored fur, the genotype bb results in light-colored fur. The researchers determined that the East lava flow population is not in Hardy-Weinberg equilibrium. Current temperature changes will correlate with temperature changes during previous extinctions. 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. 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 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. After several generations, both groups of mice are given a new type of food that is harder to digest than the previous food. 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. 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.
Ap Classroom Unit 7 Progress Check Mcq Answers Ap Bio The M4 and M5 populations have the lowest genetic diversity of all populations. The frequency of the BB allele will increase because light-colored individuals will be more visible to predators. The M4M4 and M5M5 populations have the lowest genetic diversity of all populations. The density of air is I.29kg/m3\mathrm{I} .29 \mathrm{~kg} / \mathrm{m}^3I.29kg/m3. The frequency of the MC1RD allele will decline due to natural selection. C. Dark color is selected for in mice from the West, Mid, and East Populations. B. Two drag forces act on a bicycle and rider: FD1F_{\mathrm{~D} 1}FD1 due to rolling resistance, which is essentially velocity independent; and FD2F_{\mathrm{~D} 2}FD2 due to air resistance, which is proportional to v2v^2v2. 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 increased air pollution of the nineteenth century due to the use of coal led to a darkening of surfaces from soot. Which of the following represents an alternate hypothesis tested by this experiment with regard to the population sizes of Henslow's sparrows? 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? 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. Thoroughbred race horses are subject to intense artificial selection to produce faster-running horses. After the 20 generations, DNA sequencing was used to determine the genetic composition of each population. Are the following statements true or false? BIO 1- CH. Natural selection C. The animals in population A accumulated fewer genetic mutations, adapting to their microclimate. Assuming that the population is in HardyWeinberg equilibrium, which of the following is the expected frequency of individuals with the genotype MNMN? 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 scientists identified a period of stability or stasis, followed by rapid change, and then stasis again with regard to shell shape. D. Grey Box, grey box and grey box. B. Select the best alternate hypothesis to support this claim. Cells with mitochondria were able to utilize metabolic energy more efficiently. Owls (primary predators of rock pocket mice) are nocturnal visual predators that are able to distinguish effectively between dark and light colors in low-light conditions. A. The darker backgrounds conferred a selective advantage to the black variety, as described by natural selection. Over time, populations A and B developed into two distinct species. The model is 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. Explain. The frequency of the MC1RDMC1RD allele will decline due to natural selection. Humans and mice have the same number of chromosomes. 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. (b) hydrogen C. The two populations will not show any differences because they were reared under identical conditions. A shift to less polluting fuel in the twentieth led to cleaner air and a lightening of the moth's normal habitat. A. AP Biology Scoring Guide Unit 7 Progress Check: MCQ Part A 14. Hunting in the nineteenth century has been blamed for a drastic reduction in the northern elephant seal population. 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 flow rate of ammonia at 10C(=624.6kg/m310^{\circ} \mathrm{C}\left(\rho=624.6 \mathrm{~kg} / \mathrm{m}^3\right.10C(=624.6kg/m3 and =1.697104kg/ms\mu=1.697 \times 10^{-4} \mathrm{~kg} / \mathrm{m} \cdot \mathrm{s}=1.697104kg/ms ) through a 222-cm\mathrm{cm}cm-diameter pipe is to be measured with a 1.51.51.5-cm\mathrm{cm}cm-diameter flow nozzle equipped with a differential pressure gage. WebAP BIO COLLEGE BOARD UNIT 7 4.9 (42 reviews) Geologic events such as mountain building can directly affect biodiversity. Which of the following best explains the divergence in morphology in the birds? Relationships of selected organisms based on catalase structure. There is a progression of pathways in organisms found in Bacteria, Archaea, and Eukarya. C. Yeast and mushrooms are the most closely related, because they are both fungi. 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. This one-line file will contain letter grades separated by blanks.Your function should print the distribution of grades, as shown. Continue treating the three insect populations with the same insecticides and determine whether their efficiencies decline significantly after several generations. Cells with flagella were better able to find food and escape predators. C. Populations with little genetic diversity are less likely to contain individuals that can withstand different selective pressures. B. No new mutations Which of the following best explains the phenotypic pattern in the moths over time? The frequency of homozygous recessive individuals will increase because light-colored fur absorbs less heat. D. Increased population sizes over time in the Isabela population, but no change in the Butuan population, B. Dark color is selected for in mice from the West, Mid, and East populations. In a particular region, a species of lizard lives in the lowlands. 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. A. A shift to less polluting fuel in the twentieth led to cleaner air and a lightening of the moth's normal habitat. Given aerobic conditions and large amounts of lightning, amino acids will spontaneously form crude proteins. 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. Convergent evolution, because these organisms do not share a recent common ancestor. Which of the following best explains why the population is not in Hardy-Weinberg equilibrium? The original habitat contained mutagens, leading to the rise of new species as a result of accumulated mutations. WebClick the card to flip . To test their claim, they monitored 12 populations of E. coli for 10,000 generations under the same environmental conditions. Whales, bony fishes, and cartilaginous fishes all have similar adaptations that enable them to live in the ocean. B. Specimen 2 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 woodlot environment is arid and species 1 and 2 are well-adapted to conserve water. B. 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. \end{gathered} A captive population of cheetahs kept in a confined area will have a greater risk of contracting and passing on a virus. B. Most of the species found in the first static period will be absent in the second static period. D. Populations with low genetic diversity are more likely to contain individuals that can withstand different selective pressures. Which of the following best explains the phenotypic pattern in the moths over time? In a certain small mammal, fur color is controlled by a pair of alleles, with B being dominant over b. The island was surveyed again in 2015, and scientists determined that the giant kangaroo rats originally in population A are now to be considered as a new species. A. Which of the following best explains the phenotypic pattern in the moths over time? Consider the hypothetical molecule B - A = B. The researchers determined that the East lava flow population is not in Hardy-Weinberg equilibrium. 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? Most of the species found in the first static period will be absent in the second static period. 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 island was surveyed again in 2015, and scientists determined that the giant kangaroo rats originally in population A are now to be considered as a new species. 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. 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 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. B. C. The woodlot is shaded, with little direct sunlight, and species 3, 4, and 5 are shade-intolerant canopy trees. Iridium is an element that is rare on Earth but commonly found in meteorites. Continue treating the three insect populations with the same insecticides and determine whether their efficiencies decline significantly after several generations. 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? A scientist maintains a large population of the fruit fly Drosophila affinis in the laboratory. Immigration of individuals from Metro Manila into the two populations A. A. Specimen 1 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. Large population size. B. B. Which of the following predicts the expected outcome of the experiment? Based on the data in table 1, which of the following best provides evidence to support this claim?
AP Biology Classroom Resources AP Central | College A group of researchers claim that chance events play an important role in the evolution of populations. 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. D. By 1940, most genetic variation for speed had been lost from the gene pool. Which of the following sets of data provides evidence that best supports common ancestry for organisms in all three domains? A mixture of ribonucleotides such as adenine and uracil will spontaneously form single-stranded chains of RNA . Which of the following best explains the impact of these new selective pressures on the organisms involved? C. Humans and mice share a recent common ancestor that had the 5-TTAGGG-35-TTAGGG-3 repeat sequence in its telomeres. 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. 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. A. B. Owls (primary predators of rock pocket mice) are nocturnal visual predators that are able to distinguish effectively between dark and light colors in low-light conditions. These building blocks combined to form polymers, such as crude proteins. 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. Human activities can drive changes in ecosystems that affect the risk of extinction. (Kentucky Derby). 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. D. Cells with mitochondria were able to utilize metabolic energy more efficiently. Which of the following statements includes a reasonable refinement that researchers could use in repeating the experiment? C. Start each population with bacterial cells that have different genotypes to make sure there is enough genetic variation for selection to occur. Even though there are numerous mountains in the region, the climate on the mountains is too cold for the lizards to survive. Which of the following best describes what occurred during the periods indicated by the arrows? A. During the last few decades, tall buildings have been built around the woodlot, and species 3, 4, and 5 are shadeintolerant plants. Dark color is selected for in mice from the West, Mid, and East populations. Which of the following statements includes a reasonable refinement that researchers could use in repeating the experiment? There are autotrophic and heterotrophic organisms found in Bacteria, Archaea, and Eukarya. 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} In an experiment, the scientist creates two groups of twenty highly inbred mice. B. To test their claim, they monitored 12 populations of E. coli for 10,000 generations under the same environmental conditions. few individuals become isolated from a large population and establish a new small population with a gene pool that differs from the large population. A. 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? Both groups of mice will show an increase in the ability to digest the new food, because they experienced the same selective pressures. A. Migration of individuals between the Isabela and Butuan populations 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. D. The M4 and M5 populations have the lowest genetic diversity of all populations. D. If recently fallen meteorites and meteoroids collected in space are tested, they will not contain organic molecules. Over time, populations A and B developed into two distinct species. 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. L_2=5 \mathrm{~m}, \quad \bar{\delta}=1 \mathrm{~mm} A . 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.