The SinoHimalayan fern, Lepisorus clathratus is 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. Statistics and Probability questions and answers; College Board AP Classroom Unit 7 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. 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. D. Grey Box, grey box and grey box. In a certain small mammal, fur color is controlled by a pair of alleles, with B being dominant over b. Figure 1 describes a possible scenario, known as the RNA World Hypothesis, that could have led to the evolution of our modern-day genetic material. D. By 1940, most genetic variation for speed had been lost from the gene pool. Which of the following best explains the impact of these new selective pressures on the organisms involved? A. College Board AP Classroom Unit 7 Progress Check: MCQ Part C Qichen (1 of 18 ) Question 1 Two community service Ap biology unit 1 test answers - anfk. A group of researchers claim that chance events play an important role in the evolution of populations. Increasing the number of trials and the number of mice in each treatment group. 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. B Humans and mice share a recent common ancestor that had the 5-TTAGGG-3 repeat sequence in its telomeres. D. A mixture of ribonucleotides such as adenine and uracil will spontaneously form single-stranded chains of RNA. Which of the following best predicts why the recombinant bacteria will fail to produce the eukaryotic protein? Populations with little genetic diversity are less likely to contain individuals that can withstand different selective pressures. A famous study from the nineteenth century involves the peppered moth, Biston betularia, commonly found in Great Britain and Ireland. 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. Based on the data in Figure 1, which of the following would most affect the allelic frequencies of the populations on Isabela and Butuan? The remaining members of the population are allowed to randomly mate with one another to produce generation 2 and future generations. Which of the following best explains why the population is not in Hardy-Weinberg equilibrium? Which of the following best predicts why the recombinant bacteria will fail to produce the eukaryotic protein? 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 liver helps the circulatory system by _________. Most of the species found in the first static period will be absent in the second static period. Some scientists propose that due to human activity and climate change, a sixth mass extinction has already begun. A. Thoroughbred race horses are subject to intense artificial selection to produce faster-running horses. 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. Which of the following represents an alternate hypothesis tested by this experiment with regard to the population sizes of Henslow's sparrows? By 1940, most genetic variation for speed had been lost from the gene pool. 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. Which of the following best explains the phenotypic pattern in the moths over time? Models of a prokaryote, first eukaryotic common ancestor, and last eukaryotic common ancestor. 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. Which of the following statements includes a reasonable refinement that researchers could use in repeating the experiment? 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. Current temperature changes will correlate with temperature changes during previous extinctions. The scientists identified a period of stability or stasis, followed by rapid change, and then stasis again with regard to shell shape. The increased air pollution of the nineteenth century due to the use of coal led to a darkening of surfaces from soot. During the last few decades, tall buildings have been built around the woodlot, and species 3, 4, and 5 are shadeintolerant plants. There is no difference in iridium levels in sediments that were deposited on Earth 3.6 billion years old, compared to recent sediments. Which of the following statements best predicts the result of a comparison between the fossils found before and after the period of rapid change? Many of these species rely on pollinators that migrate based on changes in day length and the position of the Sun. Figure 1 shows the phylogeny of the birds. Which of the following would be an appropriate alternative hypothesis? 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. Which statement below best states an alternative hypothesis Fox could have used to frame his research? Which of the following best predicts the effect of the enclosure on the O'Neill population? 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 B. 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 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. L_2=5 \mathrm{~m}, \quad \bar{\delta}=1 \mathrm{~mm} To test their claim, they monitored 12 populations of E. coli for 10,000 generations under the same environmental conditions. Cells with nuclear membranes were better able to protect their genetic material against damage. A mixture of ribonucleotides such as adenine and uracil will spontaneously form single-stranded chains of RNARNA. D. A mixture of ribonucleotides such as adenine and uracil will spontaneously form single-stranded chains of RNA. These alleles code for glycoproteins that act as antigens on the red blood cells. D. Populations with low genetic diversity are more likely to contain individuals that can withstand different selective pressures. A group of birds is found in an island chain that have all descended from a single ancestral species. B. Which of the following is closest to the frequency of the MC1RD allele in the Tule Mountain population. True 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. Which of the following would be an appropriate alternative hypothesis? B. 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. Dark color is selected for in mice from the West, Mid, and East populations. Implement function distribution() that takes as input the name of a file (as a string). A. C. Yeast and mushrooms are the most closely related, because they are both fungi. Which of the following best predicts the effect of the enclosure on the O'Neill population? Suppose that a 15m/s15-\mathrm{m} / \mathrm{s}15m/s wind is blowing across the roof of your house. Some plant species flower in response to increasing daily temperatures in the spring. Which of the following statements includes a reasonable refinement that researchers could use in repeating the experiment? Immigration of individuals from Metro Manila into the two populations. B. D. Start each population with bacteria that differ from one another by a single mutation to ensure that the initial genetic variation in all populations is known. C. 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. Take a look at the Intro to Unit 5 . The original habitat had many available unoccupied ecological niches that were colonized by populations of the original species. This molecule cannot exist. Does this exceed the (24-hr) air quality standard of 0.14 ppm? Consider the hypothetical molecule B - A = B. Which of the following best predicts why the recombinant bacteria will fail to produce the eukaryotic protein? \end{gathered} Some lizards will migrate to new habitats in the mountains and become isolated, leading to allopatric speciation. (b) hydrogen After rearing five additional generations of the mice on this new food, the two groups are assessed for how efficiently this new food is digested. Which of the following is an alternative hypothesis that can be tested to support the RNA World Hypothesis? Increasing the number of trials and the number of mice in each treatment group. D. During the last few decades, tall buildings have been built around the woodlot, and species 3, 4, and 5 are shadeintolerant plants. Which of the following best describes the processes occurring between the mouse populations and their environments? The frequency of homozygous recessive individuals will increase because light-colored fur absorbs less heat. Which of the following best describes the processes occurring between the mouse populations and their environments? These building blocks combined to form polymers, such as crude proteins. Telomeres consist of hundreds or thousands of repeats of the same short DNA sequence, which varies between organisms. Scientists studying the fossils observed patterns of changing shell shape in the mollusks. a) filtering blood of harmful substances. Which of the following predicts the expected outcome of the experiment? Continue treating the three insect populations with the same insecticides and determine whether their efficiencies decline significantly after several generations. 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 scientist wishes to provide experimental evidence to support the model shown in Figure 1 by demonstrating the ability to synthesize an RNA molecule. 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. natural 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 following best explains the phenotypic pattern in the moths over time? A model of the investigation is shown in Figure 1. C. Most of the species found in the first static period will be absent in the second static period. D. Cells with mitochondria were able to utilize metabolic energy more efficiently. The two populations will show significant genetic differences because the founder effect will result in significant losses in diversity in the smaller population. Mushrooms and potatoes are most closely related, since the node they share gave rise to all of the other organisms. The telomeric repeat sequences for selected organisms are given in Table 1. 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? Scientists want to determine the age of | Course Hero. Continue treating the three insect populations with the same insecticides and determine whether their efficiencies decline significantly after several generations. 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 darker backgrounds conferred a selective advantage to the black variety, as described by natural selection. If you are giving the alternate exam for late testing, say: It is Friday afternoon, May 24, and you will be Cattle and sheep are separated by only one node, and they are separated from the other organisms by more than one node. Observed modern extinction rates will resemble the rates found early in previous extinctions. The frequency of the BB allele will increase because light-colored individuals will be more visible to predators. By 1940, most genetic variation for speed had been lost from the gene pool. Which of the following principles best justifies a claim that cheetahs, compared to other large cats, have a relatively low resilience to environmental perturbations? In a particular region, a species of lizard lives in the lowlands. 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. 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? The model is shown in Figure 1. WebProgress checks help you gauge student knowledge and skills for each unit through: multiple-choice questions with rationales explaining correct and incorrect answers, and; False. A. 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. Human activities can drive changes in ecosystems that affect the risk of extinction. Dark color is selected for in mice from the West, Mid, and East populations. Continue treating the three insect populations with the same insecticides and determine whether their efficiencies decline significantly after several generations. In an experiment, the scientist creates two groups of twenty highly inbred mice. 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? B. 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. 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. Some scientists propose that due to human activity and climate change, a sixth mass extinction has already begun. Which of the following best describes what occurred during the periods indicated by the arrows? 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. Students used an online database, which used the structure of catalase from different species, to generate the phylogenetic tree shown in Figure 1. Most of the species found in the first static period will be absent in the second static period. The current global warming trend is placing new selective pressures on the species involved in these relationships. A recent survey of ten Midwest counties are shown in Figure 1. Hunting in the nineteenth century has been blamed for a drastic reduction in the northern elephant seal population. Only males can inherit the color blindness condition. B. The darker backgrounds conferred a selective advantage to the black variety, as described by natural selection. Observed modern extinction rates will resemble the rates found early in previous extinctions. Populations with little genetic diversity are less likely to contain individuals that can withstand different selective pressures. D. Bacteria and eukaryotes use different mRNA codons for the same amino acids during translation. In a certain small mammal, fur color is controlled by a pair of alleles, with B being dominant over b. D. The two populations will not show any differences because they originated from the same gene pool. Absence of 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. WebAP Biology Unit 7 Progress Check Which of the following best describes the processes occurring between the mouse populations and their environments? (d) aluminum. After rearing five additional generations of the mice on this new food, the two groups are assessed for how efficiently this new food is digested. D. The M4 and M5 populations have the lowest genetic diversity of all populations. Some lizards will migrate to new habitats in the mountains and become isolated, leading to allopatric speciation. Which of the following best illustrates the change in the frequencies of the A and a alleles from generation 1 to generation 2 and to future generations, assuming Hardy-Weinberg equilibrium is present after generation 1 ? The second group is fed the same food without the mutagen. C. Gene flow between populations A and B maintained sufficient variation in both gene pools to facilitate the development of two distinct species. Which of the following is closest to the frequency of the MC1RD allele in the Tule Mountain population? C. Organisms in Bacteria, Archaea, and Eukarya each have adenine, thymine, guanine, and cytosine bases forming their DNA. Which of the following statements best predicts the result of a comparison between the fossils found before and after the period of rapid change? Some researchers claim that the decrease in plant species richness of this woodlot is unrelated to human activities over the last forty years. A population of the species has the following allele frequencies: B=0.85 and b=0.15. 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. When a population is reduced, new niches become available in the environment, which can trigger adaptive radiation. Which of the following best describes what occurred during the periods indicated by the arrows? WebStatistics and Probability questions and answers. The M4 and M5 populations have the lowest genetic diversity of all populations. The second group is fed the same food without the mutagen. Cells with mitochondria were able to utilize metabolic energy more efficiently. Which of the following best explains the trend shown in Figure 1? A scientist wishes to provide experimental evidence to support the model shown in Figure 1 by demonstrating the ability to synthesize an RNA molecule. D. Mice utilized the 5-TTAGGG-35-TTAGGG-3 telomeric repeat sequence first, but the sequence independently evolved in humans as well. D. Specimen 4. Figure 1 shows the phylogeny of the birds. White circle, grey circle and black circle. Which of the following best explains the mechanism that caused this speciation event in the giant kangaroo rats of population A? 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. BIO 1- CH. 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. Which of the following sets of data provides evidence that best supports common ancestry for organisms in all three domains? A. Interspecific competition caused the extinction of species 4 and 5. Some scientists propose that due to human activity and climate change, a sixth mass extinction has already begun. Which of the following best explains the phenotypic pattern in the moths over time? Which of the following best predicts why humans and mice have identical telomeric repeat sequences? A. Introns must be removed from eukaryotic DNA before the gene is inserted into the plasmid. Because the mice are highly inbred, they are essentially identical to one another. A. A. There is a progression of pathways in organisms found in Bacteria, Archaea, and Eukarya. 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? C. Black Circle, grey box, and white triangle. Find an equation of the tangent plane to the given surface at the specified point. Which of the following statements includes a reasonable refinement that researchers could use in repeating the experiment? Facts about the test: The AP Biology exam has 60 multiple choice questions and you will be given 1 hour D. There is a progression of cellular organization in organisms found in Bacteria, Archaea, and Eukarya. similarities exhibited by whales, bony fishes, and cartilaginous fishes? Start each population with a different species of bacteria to determine whether the same environment has an effect on genetic differentiation. 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. relationship between the MC1R gene and coat color in the Carrizozo, New Mexico, rock pocket mouse population? C. The species will experience a genetic bottleneck, and sympatric speciation will result in the development of several new species. ayo **** that girl who gave me the wrong answers. A. B. C. Organisms in Bacteria, Archaea, and Eukarya each have adenine, thymine, guanine, and cytosine bases forming their DNA. The two populations will show significant genetic differences because the founder effect will result in significant losses in diversity in the smaller population. A scientist believes that the first organic molecules may have come to Earth on meteorites 3.6 billion years ago. Dark coat color provides camouflage to mice on the flow; therefore, mice with dark coats predation rate in that habitat. Scientists claim that some of the populations in Marion County are at an increased risk of decline or extinction. Organisms in Bacteria, Archaea, and Eukarya each have adenine, thymine, guanine, and cytosine bases forming their DNA. C. Formation of simple proteins on primitive Earth only occurs spontaneously if the required building blocks were transported to Earth by a celestial event or a meteorite. The population was predominantly black throughout the nineteenth century. A scientist maintains a large population of the fruit fly Drosophila affinis in the laboratory. B. The two populations will show significant genetic differences because the founder effect will result in significant losses in diversity in the smaller population. Image courtesy of Pixabay. Human activities can drive changes in ecosystems that affect the risk of extinction. 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: 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. C. Most of the species found in the first static period will be absent in the second static period. By the end of the twentieth century, the peppered version of the moth was again more common than the black version. WebView AP Biology Unit 7 Evolution; MCQ Questions 1.pdf from BIOLOGY 101 at Oakland High School, Oakland. The scientists identified a period of stability or stasis, followed by rapid change, and then stasis again with regard to shell shape. D. The original habitat was tropical, which increased the rate of mutation and led to rapid diversification. Cattle are equally related to pigs and sheep, because the phylogeny places cattle between pigs and sheep. 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. B. During the last few decades, tall buildings have been built around the woodlot, and species 3, 4, and 5 are shadeintolerant plants. Which of these would be an appropriate null hypothesis to test related to whether meteorites hit the Earth 3.6 billion years ago? B. Select the best alternate hypothesis to support this claim. A. The switch to increased transport by planes during the twentieth century reduced this gene flow. After the 20 generations, DNA sequencing was used to determine the genetic composition of each population. One group is given food with an added substance that is known to be a mutagen. The distance the horses ran became shorter between 1880 and 1940. C. Humans and mice share a recent common ancestor that had the 5-TTAGGG-35-TTAGGG-3 repeat sequence in its telomeres. 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. Select the best alternate hypothesis to support this claim. 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. Which statement below best states an alternative hypothesis Fox could have used to frame his research? One facet of the study of the origin of life focuses on the nature of the first genetic material. 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. 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. Iridium is an element that is rare on Earth but commonly found in meteorites. 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? Observed modern extinction rates will resemble the rates found early in previous extinctions. 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? Which of the following student claims is best supported by the data provided? 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?
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