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. Iridium is an element that is rare on Earth but commonly found in meteorites. 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. Can the voltage across a battery's terminals be higher than the battery's rated voltage? D. Cattle and sheep are separated by only one node, and they are separated from the other organisms by more than one node. The researchers determined that the East lava flow population is not in Hardy-Weinberg equilibrium. The animals in population A were reproductively isolated from those in populations B, C, and D. C. Yeast and mushrooms are the most closely related, because they are both fungi. BIO 1- CH. Which of the following best explains why the population is not in Hardy-Weinberg equilibrium? 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. A. By the end of the twentieth century, the peppered version of the moth was again more common than the black version. College Board AP Classroom Unit 7 Progress Check: MCQ Part C Qichen (1 of 18 ) Question 1 Two community service (b) hydrogen ayo **** that girl who gave me the wrong answers. 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. 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. 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. E1=E2=200GPa,1=2=12106/CA1=25mm2,A2=50mm2,L1=3m,L2=5m,=1mm. 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 original habitat had many available unoccupied ecological niches that were colonized by populations of the original species. 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. 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? 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? Thoroughbred race horses are subject to intense artificial selection to produce faster-running horses. 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? D. The black variety was a nineteenth century mutation, dominant to the peppered variety. 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? Geographic isolation will create separate gene pools, leading to speciation over time. AP Biology Unit 7 Progress Check Flashcards | Quizlet B. 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 would be an appropriate alternative hypothesis? A group of birds is found in an island chain that have all descended from a single ancestral species. Current temperature changes will correlate with temperature changes during previous extinctions. 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. 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. Which of the following best explains the impact of these new selective pressures on the organisms involved? WebUnit 7 MCQ 4.9 (31 reviews) Flashcards Learn Test Match Which of the following best describes the processes occurring between the mouse populations and their After several generations, both groups of mice are given a new type of food that is harder to digest than the previous food. A group of researchers noticed that using a particular drug to treat cancer in mice would reduce the size of the tumor, but some of the tumor cells appeared to be resistant to the drug since some of these cells would increase in number over time. Which of the following best describes what occurred during the periods indicated by the arrows? The genotypes BB and Bb result in dark-colored fur, the genotype bb results in light-colored fur. A shift to less polluting fuel in the twentieth led to cleaner air and a lightening of the moth's normal habitat. There will be no difference in the populations observed in the controlled fire sites and the rest of counties 5 and 6. Over time, populations A and B developed into two distinct species. Which of the following is an alternative hypothesis that can be tested to support the RNARNA World Hypothesis? Some lizards will migrate to new habitats in the mountains and become isolated, leading to allopatric speciation. Image courtesy of Pixabay Facts about the test: The AP Biology exam has 60 multiple choice questions and you will be given 1 hour few individuals become isolated from a large population and establish a new small population with a gene pool that differs from the large population. WebIt is Monday morning, May 13, and you will be taking the AP Biology Exam. Image courtesy of Pixabay. 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. 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. B. Specimen 2 C. Black Circle, grey box, and white triangle. Most of the species found in the first static period will be absent in the second static period. 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? There is a progression of pathways in organisms found in Bacteria, Archaea, and Eukarya. C. Random mating Cattle and sheep are separated by only one node, and they are separated from the other organisms by more than one node. These alleles code for glycoproteins that act as antigens on the red blood cells. B. 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. Which of the specimens indicated in the table is the oldest? Scientists claim that some of the populations in Marion County are at an increased risk of decline or extinction. The model is shown in Figure 1. Scientists claim that some of the populations in Marion County are at an increased risk of decline or extinction. WebDownload free-response questions from past AP Biology exams, along with scoring guidelines, sample responses from exam takers, and scoring distributions. White circle, white box, and white triangle. A. 2023 AP Bio Unit 7 Review | Free Reviews, Study Guides, & Notes There are autotrophic and heterotrophic organisms found in Bacteria, Archaea, and Eukarya. WebProgress checks help you gauge student knowledge and skills for each unit through: multiple-choice questions with rationales explaining correct and incorrect answers, and; Which of the following best predicts why humans and mice have identical telomeric repeat sequences? C. If a sediment layer that is 3.6 billion years old is tested, it will contain organic material. Which of the following principles best justifies a claim that cheetahs, compared to other large cats, have a relatively low resilience to environmental perturbations? C. The original habitat contained many predators, and the species diversified in order to avoid extinction. Graph that starts at 5.0 cm and ends at 9.0 cm. 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. This molecule cannot exist. 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. Humans and mice share a recent common ancestor that had the 5-TTAGGG-35-TTAGGG-3 repeat sequence in its telomeres. A shift to less polluting fuel in the twentieth led to cleaner air and a lightening of the moth's normal habitat. B. 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? A. Introns must be removed from eukaryotic DNA before the gene is inserted into the plasmid. 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? 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. In a particular region, a species of lizard lives in the lowlands. B. The darker backgrounds conferred a selective advantage to the black variety, as described by natural selection. A researcher uses the protocol shown in Figure 1 to isolate a eukaryotic gene for the purpose of genetically engineering bacteria to synthesize the corresponding protein. Dark coat color provides camouflage to mice on the flow; therefore, mice with dark coats predation rate in that habitat. A. 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. D. The M4 and M5 populations have the lowest genetic diversity of all populations. Continue treating the three insect populations with the same insecticides and determine whether their efficiencies decline significantly after several generations. B. WebAP Biology Unit 7 Evolution MCQ Questions 8.pdf - AP Biology Scoring Guide Unit 7 Progress Check: MCQ Part A 8. c) storing bile that is released into the bloodstream. Which of the following best explains the mechanism that caused this speciation event in the giant kangaroo rats of population A? D. Large population size. Which of the following predicts the expected outcome of the experiment? AP Biology Unit 7 Evolution MCQ Questions 8.pdf - AP 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 impact of these new selective pressures on the organisms involved? AP Biology Unit 7 MCQ B Flashcards | Quizlet 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. 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 two populations will show significant genetic differences because the founder effect will result in significant losses in diversity in the smaller population. The same species will be found in both static periods, but they will have different shell shapes. Click the card to flip Geographic isolation will create separate gene pools, describes how the L. clathratus population would be affected? C. The two populations will not show any differences because they were reared under identical conditions. 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. Convergent evolution, because these organisms do not share a recent common ancestor. 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. Which of the following sets of data provides evidence that best supports common ancestry for organisms in all three domains? The woodlot environment is arid and species 1 and 2 are well-adapted to conserve water. C. Gene flow between populations A and B maintained sufficient variation in both gene pools to facilitate the development of two distinct species. Both the larger population and the isolated population were maintained under identical conditions and allowed to mate randomly for another 20 generations. WebAp Bio Unit 7 Progress Check Mcq Answers. 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). B. Which of the following best explains the divergence in morphology in the birds? (Kentucky Derby). All of the selective breeding programs ended in 1940. 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. 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. Because the mice are highly inbred, they are essentially identical to one another. The SinoHimalayan fern, Lepisorus clathratus is A recent survey of ten Midwest counties are shown in Figure 1. Which of the following best explains the mechanism that caused this speciation event in the giant kangaroo rats of population A? 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. 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. The genotypes BB and Bb result in dark-colored fur, the genotype bb results in light-colored fur. WebAp Bio: Unit 7 Progress Check: MCQ describes how the L. clathratus population would be affected? The second group is fed the same food without the mutagen. 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? 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. Which of the following is the most reasonable prediction about the results of the experiment? A model of the investigation is shown in Figure 1. The model is shown in Figure 1. Assuming that the population is in HardyWeinberg equilibrium, which of the following is the expected frequency of individuals with the genotype MNMN? A scientist believes that the first organic molecules may have come to Earth on meteorites 3.6 billion years ago. Which of the following predicts the expected outcome of the experiment? Human activities can drive changes in ecosystems that affect the risk of extinction. B. A. White circle, grey circle and black circle. A scientist is studying the impact of mutagens on genetic variation in mice. Which of the following represents an alternate hypothesis tested by this experiment with regard to the population sizes of Henslow's sparrows? The increased air pollution of the nineteenth century due to the use of coal led to a darkening of surfaces from soot. 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. Which of the following best describes the expected distribution of proboscis size of the moths at the end of the fiveyear study?
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