Unit 6 progress check mcq ap bio

The AP Biology Exam assesses student understanding of the science practices and learning objectives outlined in the course framework. The exam is 3 hours long and includes 60 multiple-choice questions and 6 free-response questions. ... Exam Weighting for the Multiple-Choice Section of the AP Exam Unit Exam Weighting 1: Chemistry of Life …

Unit 6 progress check mcq ap bio. 4.7 (10 reviews) (1) Competitive exclusion is most likely to occur between two. (A) closely related species occupying different niches. (B) closely related species occupying the same niche. (C) related species occupying different habitats. (D) unrelated species occupying different niches.

This is a modified version of the 2013 AP Biology Exam. This practice exam is provided by the College Board for AP Exam preparation. Exams may not be posted on school or personal websites, nor electronically redistributed for any reason. Teachers are permitted to download the materials and make copies to use with the students in a classroom ...

AP Biology - Unit 1 Progress Check: MCQ. Figure 1 represents a segment of DNA. Radiation can damage the nucleotides in a DNA molecule. To repair some types of damage, a single nucleotide can be removed from a DNA molecule and replaced with an undamaged nucleotide. Which of the four labeled bonds in Figure 1 could be broken to remove and replace ... In locations such as the Caribbean Sea, international borders between island states are determined by the United Nations Convention on the Law of the Sea. These maritime boundaries can best be described as. B. superimposed borders. AP Human Geography: Unit 4 Progress Check: MCQ (I couldn't get all of the pictures for some of the questions)a step pyramid. The Qorikancha in Cusco functioned as a. shrine. The painter of this work conveys the movement and energy of the subject by. repeating figures and similar forms facing in the same direction. San Ildefonso Pueblo artists Maria Martínez and Julian Martínez created their black-on-black ceramic vessel by.Study with Quizlet and memorize flashcards containing terms like In the mid-1920s, gray wolves, Canis lupus, were eliminated from Yellowstone National Park in the northwestern United States. Over the course of 1995 and 1996, 31 wolves from Canada were relocated to the park. Researchers have tracked the growth of the wolf population from 21 in 1995 to 108 at the end of the study in 2016 (Figure ...a step pyramid. The Qorikancha in Cusco functioned as a. shrine. The painter of this work conveys the movement and energy of the subject by. repeating figures and similar forms facing in the same direction. San Ildefonso Pueblo artists Maria Martínez and Julian Martínez created their black-on-black ceramic vessel by.Question criteria for my AP Bio homies Learn with flashcards, games, and more — for free.

Answer: C) Populists sought new markets for United States agricultural goods overseas. 26) Which of the following can be concluded about the status of middle-class people during the late 1800s when the excerpt was produced? Answer: B) B) They experienced a growth of access to leisure time. Study with Quizlet and memorize flashcards containing terms like Which feature of model 1 best illustrates how biological information is coded in a DNA molecule?, Figure 1 represents a segment of DNA. Radiation can damage the nucleotides in a DNA molecule. To repair some types of damage, a single nucleotide can be removed from a DNA molecule and replaced with an undamaged nucleotide. Which of ... Biodata, or bio data, is short for “biographical data” and is a form of resume used when applying for certain jobs. A bio data focuses on the candidate’s personal information such ...Figure 1. Melanin synthesis pathway. The peptide hormone α-melanocyte stimulating hormone (α-MSH) activates a signal transduction pathway leading to the activation of MITF. MITF is a transcription factor that increases the expression of the TYR, TRP2, and TRP1 genes (Figure 2). Figure 2.(c) Identify the plasmid that must contain the CD3γCD3γ core promoter sequence but the fewest or no negative regulatory sequences. Based on the data in Figure 2, describe the most likely cause of the variation in luciferase activity among the cells that contain plasmids pCD3γ-419, pCD3γ-309, pCD3γ-239, and pCD3γ-199. The Progress Check MCQ (multiple-choice questions) is a valuable tool for assessing students’ knowledge and understanding in the AP Biology Unit 8. These questions cover a range of topics related to evolution, specifically focusing on population genetics, speciation, and the history of life on Earth. By exploring the types of questions ...

Learn AP Biology using videos, articles, and AP-aligned multiple choice question practice. Review the fundamentals of biochemistry, cell biology, genetics, evolution, and ecology, and develop scientific thinking skills as you explore the study of life. ... Unit 10 Unit 10: AP®︎ Biology standards mappings. This unit does not include exercises. Course … AP World History unit 7 progress check. 24 terms. Hailey_Dabesh. Preview. APWH, Unit 4 Test, My AP Practice ... Unit 8 Progress Check: MCQ (AP World) 2022. 24 terms ... The foreign policy strategy of supporting developing nations as a means to prevent the spread of communism. A. The popularization of liberal policies characterized by movements for rights and equality. B. The ascendance of a youth counterculture and its role in leading social and cultural change. This is a modified version of the 2013 AP Biology Exam. This practice exam is provided by the College Board for AP Exam preparation. Exams may not be posted on school or …Study with Quizlet and memorize flashcards containing terms like Machines at a factory produce circular washers with a specified diameter. The quality control manager at the factory periodically tests a random sample of washers to be sure that greater than 90 percent of the washers are produced with the specified diameter. The null hypothesis of …

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Study with Quizlet and memorize flashcards containing terms like (a) Identify both the cellular component and the location of the component that is responsible for producing the luciferase protein from mRNAs transcribed in the plasmid-containing T lymphocytes. Explain what dictates to the lymphocytes the correct order in which amino acids should be linked to form the luciferase protein., (b ... Ap bio unit 6 help? Hi, my greedy ap bio teacher wont upload the unit 6 progress check mcq and i was wondering if anyone could link it? My test is tomorrow and im fairly …AP Biology - Unit 5 - MCQ's and Topic Questions. 48 terms. sopht143. Preview. AP Biology Unit 5 Progress Check. 44 terms. rupali_bajwa2005. Preview. Establishing Credibility Questions . 21 terms. Sky1461. Preview. English Vocab Tri 2. 50 terms. quizlette63809155. Preview. AP Psych Unit 1. Teacher 65 terms. purkiss_shane. …AP classes prepare learners to take tests on college-level knowledge in 38 subjects. Students can take AP classes in 38 areas, including English. Updated March 21, 2023 • 5 min rea...

FRQ Practice Submission 5. a) Gene G most likely codes for glycolysis. All of the cells exhibit this gene as shown in the chart. Because glycolysis is essential in all cells, this suggests that this is the gene that codes for glycolysis. b) Gene H was most likely an intron that got removed during RNA splicing.Related to Question 1 Information: Based on the data in the figure, a student claimed that since 2007, the carrying capacity of wolves in Yellowstone National Park has been 100 wolves, and the maximum annual per capita growth rate of gray wolves is 0.6 wolves per wolf per year.AP Bio - Unit 4 Progress Check MCQ. 24 terms. alainawahl. Preview. Unit 4 AP Classroom Progress Check FRQ. 8 terms. PurnimaYalavarty7. Preview. Bio exam 1. 49 terms ...gracekang718. AP Biology Unit 5: Heredity Topics - Meiosis, Meiosis and Genetic Diversity, Mendelian Genetics, Non-Mendelian Genetics, Environmental Effects on Phenotype, Chromosomal Inheritance Directions - For each question, choose the best answer (unless otherwise stated) Test Period - You have 22 minutes 30 seconds to …Related to Question 1 Information: Based on the data in the figure, a student claimed that since 2007, the carrying capacity of wolves in Yellowstone National Park has been 100 wolves, and the maximum annual per capita growth rate of gray wolves is 0.6 wolves per wolf per year.Unit 7 Progress Check: MCQ Part A AP Biology Page 3 of 17 (A) Geographic isolation will create separate gene pools, leading to speciation over time. (B) Gene flow will be reduced by sexual selection and polyploidy. (C) Chance events will cause allele frequencies to fluctuate unpredictably from one generation to the next. (D) Ferns reproduce asexually, …Select two answers. The block has its maximum acceleration at all times 0.5n, where n is a zero or a whole number. B. The block has maximum spring potential energy at all times 0.5n, where n is a zero or a whole number. Study with Quizlet and memorize flashcards containing terms like What is the magnitude of the change in potential energy of ...AP Biology Practice Test: Unit 6 — Gene Expression & Regulation - High School Test Prep. Question 1. Which of the following nucleic acids is not found in RNA? Question 2. Which is the correct sequence of information …President Theodore Roosevelt supported Progressive reform through his efforts to enact government, welfare and conservation legislation. The reforms instituted by his administratio...mein0009. Knowledge Checks: Renal. 54 termsImages. gcgcb4l. Practice Exam Tricky Quesitons. 59 terms. LexiGamble19. 1 / 4. Study with Quizlet and memorize flashcards containing terms like When she discusses Obama in the first paragraph, the author's tone is best described as, Which of the following best describes the relationship between the ...Unit 7 progress check MCQ. 30 terms. dd232025. Preview. AP Psychology Unit 9 Progress Check. 21 terms. ryleg13. Preview. Ch35 Sleep & Rest. 47 terms. TimeJHC. Preview. Psych 350 Exam 1 - essay questions. 14 terms. jennipeterson19. Preview. Research Methods Exam 2 (Ch. 6-8) 93 terms. sydneyandamasaris. Preview. AP …Cell 2. Hereditary spherocytosis (HS) is a disorder of red blood cells that causes the cells to be smaller and spherical instead of having the usual flattened, biconcave shape. The average diameter of normal red blood cells is 7.2μm, and the average diameter of red blood cells in a person with HS was found to be 6.7μm.

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? Most of the species found in the first static period will be absent in the second static period.

The foreign policy strategy of supporting developing nations as a means to prevent the spread of communism. A. The popularization of liberal policies characterized by movements for rights and equality. B. The ascendance of a youth counterculture and its role in leading social and cultural change.Cell Biology. AP Biology Unit 6 FRQ's. 1. Two Drosophila heterozygous for the same set of alleles were crossed: A+A x A+A. 65% of the resulting offspring had the mutant phenotype associated with the A allele, and 35% had the wild type phenotype. Determine if the homozygous mutant genotype, AA, is more like to be lethal or to result in the ...AP classes prepare learners to take tests on college-level knowledge in 38 subjects. Students can take AP classes in 38 areas, including English. Updated March 21, 2023 • 5 min rea... AP Biology - Unit 3 Progress Check: MCQ. Researchers investigated the influence of environmental pH on the activity of peroxidase, an enzyme that catalyzes the conversion of hydrogen peroxide to water and oxygen gas. In an experiment, the researchers added a hydrogen peroxide solution containing guaiacol to several identical test tubes and ... Study with Quizlet and memorize flashcards containing terms like Part 1 A:Describe the first interaction that triggers signaling to begin in a target cell., Part 1 B: Identify a dependent variable in the experimental design. Identify a negative for the effects of hormone addition. Identify a likely reason why the researchers continued their experiment for 240 minutes., Part 1 C: Identify the ...MyAP Bio Unit 5 Progress Check Answers. For sexually reproducing diploid parent cells, which of the following statements best explains the production of haploid cells that occurs in meiosis but not in mitosis? Click the card to flip 👆. Separation of chromatids occurs once, and there are two rounds of cell division in meiosis.AP Bio Unit 2 progress check: MCQ. best describes how the structure of ice benefits the organisms that live in the water below? The water molecules in ice are farther apart than those in liquid water, so the ice floats, maintaining the warmer, denser water at the lake bottom.

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The content of the funeral banner of Lady Dai (Xin Zhui) is similar to the last judgment of Hu-Nefer, from his tomb (page from the Book of the Dead) in that each one depicts. the deceased after death. The influence of multiple viewpoints and visual motifs in Chinese paintings such as Fan Kuan's Travelers among Mountains and Streams can be seen in.AP Biology Unit 6 2021 quiz for 9th grade students. Find other quizzes for Biology and more on Quizizz for free!mein0009. Knowledge Checks: Renal. 54 termsImages. gcgcb4l. Practice Exam Tricky Quesitons. 59 terms. LexiGamble19. 1 / 4. Study with Quizlet and memorize flashcards containing terms like When she discusses Obama in the first paragraph, the author's tone is best described as, Which of the following best describes the relationship between the ...AP Biology - Unit 1 Progress Check: MCQ. Figure 1 represents a segment of DNA. Radiation can damage the nucleotides in a DNA molecule. To repair some types of damage, a single nucleotide can be removed from a DNA molecule and replaced with an undamaged nucleotide. Which of the four labeled bonds in Figure 1 could be broken to remove and replace ...B. Starch and cellulose are composed of repeating glucose monomers; however, in cellulose every other glucose monomer is rotated 180 degrees. AP Biology - Unit 1 Progress Check: MCQ. Get a hint. Figure 1 represents a segment of DNA. Radiation can damage the nucleotides in a DNA molecule. To repair some types of damage, a single nucleotide can ...ap human Unit 3 MCQ. 3.8 (16 reviews) Flashcards; Learn; Test; Match; Q-Chat; Flashcards; Learn; Test; ... prettynpink_174. Created 3 years ago. Share. Share. Students also viewed. Unit 3~ AP Human . 24 terms. Lkrebs69. Preview. AP HUMAN GEOGRAPHY UNIT 5 PROGRESS CHECK. 36 terms. Ava_Che. Preview. AP HUG Unit 6: Cities (part …AP US History. Unit 2 Progress Check: MCQ. Which of the following was the most important reason that Native American relations with English settlers differed from Native American relations with other groups of European settlers in the 1600s? Click the card to flip 👆. Larger numbers of English colonists settled on land taken from Native ... AP Bio - Unit 4 Progress Check MCQ. 24 terms. alainawahl. Preview. AP Biology Unit 5 Progress Check. 44 terms. rupali_bajwa2005. Preview. Evolution, Immune System ... Tired of typing with one finger or spending endless hours at the keyboard? You need to brush up on your typing skills, and then check your progress with a free typing test. A varie... ….

Watch a detailed walkthrough of AP Calculus AB unit 6 progress check multiple choice questions, with tips and tricks to ace the exam.Directions: Questions 1 and 2 are long free-response questions that require about 25 minutes each to answer. Questions 3 through 6 are short free-response questions that require about 10 minutes each to answer. Read each question carefully and completely. Answers must be written out in paragraph form.Unit 7 progress check MCQ. 30 terms. dd232025. Preview. AP Psychology Unit 9 Progress Check. 21 terms. ryleg13. Preview. Ch35 Sleep & Rest. 47 terms. TimeJHC. Preview. Psych 350 Exam 1 - essay questions. 14 terms. jennipeterson19. Preview. Research Methods Exam 2 (Ch. 6-8) 93 terms. sydneyandamasaris. Preview. AP …The United States Constitution has a formal Separation of Powers that divides government into three branches, giving each branch checks and balances on the others to prevent one fr...AP Bio Unit 6 Study Guides. Unit 6 – Gene Expression & Regulation Unit 6 Practice Quiz. ... Score Higher on AP Biology 2024: MCQ Tips from Students. 7 min read. Score Higher on AP Biology 2024: Tips for FRQ 1 - Interpreting and Evaluation Experimental Results. 6 min read. Score Higher on AP Biology 2024: Tips for FRQ 2 – Interpreting and …UNIT 6 PROGRESS CHECK: MCQ PART A (AP STATS) Course. MCQ. Institution. MCQ. The manager of a city recreation center wants to estimate the percent of city residents who favor a proposal to build a new dog park. To gather data, the manager will select a random sample of city residents. Which of the following is the most appropriate …q. In the opening sentences of the passage ("Now I know . . . color of my hair!"), the author refers to Alice Walker primarily to. q. In the passage, the author is primarily concerned with. q. In the fourth and fifth paragraphs, the author defends her decision to marry George Bush by elaborating on. q.Sensation. the process of detecting environmental stimuli & converting them into signals that can be detected by the nervous system. *Perception is the higher-order process of interpreting stimuli. Absolute Threshold. the lowest strength of a stimulus that a person can detect 50% of the time. - Ex. Sense of smell.A) Hydrogen gas is not readily available on Earth. A state is looking to reduce the cost of transportation, which uses 7.10×1014 BTUs per year. Currently the cost of 106 BTUs is $20.00. How much will the state save in one year if they implement regulations requiring all transportation methods to be 20% more efficient? 2.84 X 10^9 dollars ...D) 5.6×1014 s−1. In an experiment on the photoelectric effect, a photon with a frequency of 7×1014s−1 was absorbed by a sample. What is the approximate energy of this photon? A) 5×10−19 J. The frequency and energy ranges of photons in some parts of the electromagnetic spectrum are given in the table above. Unit 6 progress check mcq ap bio, Refrigerator A uses 500 watts per hour when the motor is operating. The motor needs to run an average of 12 hours per day, every day, to stay at a constant, cold temperature. This model of refrigerator lasts an average of 20 years before it needs to be replaced and costs $1,000. Each kWh of electricity costs $0.12., Phosphorus is used to make nucleic acids and certain lipids. Without phosphorus atoms, nucleic acids and lipids cannot be made for the plant to use for growth. A polypeptide is polymer of amino acids held together by peptide bonds. The process of dehydration synthesis creates these peptide bonds, as shown in Figure 1., Mar 23, 2024 · 20 of 20. Quiz yourself with questions and answers for AP Biology: Unit 6 Test, so you can be ready for test day. Explore quizzes and practice tests created by teachers and students or create one from your course material. , mein0009. Knowledge Checks: Renal. 54 termsImages. gcgcb4l. Practice Exam Tricky Quesitons. 59 terms. LexiGamble19. 1 / 4. Study with Quizlet and memorize flashcards containing terms like When she discusses Obama in the first paragraph, the author's tone is best described as, Which of the following best describes the relationship between the ..., To retard the breakdown of the catalase. The following questions refer to an experiment that is set up to determine the relative volume of O2 consumed by germinating and nongerminating (dry) pea seeds at two different temperatures. The change in volume is detected by using a respirometer over a given period of time. , Study with Quizlet and memorize flashcards containing terms like (a) Identify both the cellular component and the location of the component that is responsible for producing the luciferase protein from mRNAs transcribed in the plasmid-containing T lymphocytes. Explain what dictates to the lymphocytes the correct order in which amino acids should be linked to form the luciferase protein., (b ... , MyAP Bio Unit 5 Progress Check Answers. For sexually reproducing diploid parent cells, which of the following statements best explains the production of haploid cells that occurs in meiosis but not in mitosis? Click the card to flip 👆. Separation of chromatids occurs once, and there are two rounds of cell division in meiosis., Watch a detailed walkthrough of AP Calculus AB unit 6 progress check multiple choice questions, with tips and tricks to ace the exam., AP Lang Unit 6 MCQ Progress Check. 18 terms. Saifan_Chow. Preview. AP HUMAN GEO MCQ APCLASSROOM REVIEW UNIT 6. 33 terms. BrendanChanPeriod3. Preview. colonial America 2., Unit #5 AP Bio Classroom Progress Check. R.C. Punnett conducted experiments on the inheritance of traits in the sweet pea, Lathyrus odoratus. In one experiment, he crossed two different true-breeding sweet pea plant strains, one with erect petals and long pollen, and the other with hooded petals and round pollen. all of the offspring (F1 ..., D The value of the rate constant for the reaction is greater in trial 2 than it is in trial 1., 6. Zn(s)+2 HCl(aq)→ZnCl2(aq)+H2(g) Zn(s) reacts with HCl(aq) according to the equation shown above. In trial 1 of a kinetics experiment, a 5.0g piece of Zn(s) is added to 100mL of 0.10MHCl(aq). ... AP Chemistry — Unit 6 Progress Check: MCQ. 24 terms. …, Comcast is one of the leading providers of internet, cable TV, and phone services in the United States. With their extensive network infrastructure, they offer high-speed internet ..., The supply will increase and the demand will decrease. Which of the following will happen to aggregate demand in the United States if the United States dollar appreciates in foreign exchange markets? A. Aggregate demand will decrease because net exports will decrease. Japan and the United States are trading partners with flexible exchange rates., AP Biology - Unit 3 Progress Check: MCQ. Researchers investigated the influence of environmental pH on the activity of peroxidase, an enzyme that catalyzes the conversion of hydrogen peroxide to water and oxygen gas. In an experiment, the researchers added a hydrogen peroxide solution containing guaiacol to several identical test tubes and ... , AP Biology Unit 5 Progress Check. 44 terms. rupali_bajwa2005. Preview. Lesson 3 English vocab. 15 terms. MariaS204. Preview. English 11 Authors. 9 terms. Anonymouse2953. Preview. AP Biology Unit 6 MCQ. 24 …, Figure 1. Melanin synthesis pathway. The peptide hormone α-melanocyte stimulating hormone (α-MSH) activates a signal transduction pathway leading to the activation of MITF. MITF is a transcription factor that increases the expression of the TYR, TRP2, and TRP1 genes (Figure 2). Figure 2., AP Bio Unit 6 Study Guides. Unit 6 – Gene Expression & Regulation Unit 6 Practice Quiz. ... Score Higher on AP Biology 2024: MCQ Tips from Students. 7 min read. Score Higher on AP Biology 2024: Tips for FRQ 1 - Interpreting and Evaluation Experimental Results. 6 min read. Score Higher on AP Biology 2024: Tips for FRQ 2 – Interpreting and …, Study with Quizlet and memorize flashcards containing terms like Which of the following claims best explains why keratinocytes do not produce melanin?, Which of the following claims about the TYR, TRP2, and TRP1 mammalian genes is most likely to be accurate?, Thus, the researchers claimed that the lack of tanning response was due a nonfunctional MC1R . Which of the following pieces of evidence ..., The cells would immediately die. b. The cells would be unable to begin M and stay in G2. c. The chromosomes would coil and shorten but have no spindle to which to attach. d. The …, Answer B: Natural selection favors the mice with the light coat color, causing the mice in all of the populations to be better adapted. Answer C: Dark color is selected for in mice from the West, Mid, and East populations. Answer D: Light color is selected for in mice from the West, Mid, and East populations. Click the card to flip 👆. c., A. exclude the Chamber of Commerce from the data and draw a pie chart. B. categorize the data by industry group and combine the data so that a bar represents each group. C. change to a line graph with the x-axis (horizontal) displaying industry group and the y-axis (vertical) showing total money spent on lobbying. D., AP Biology Unit 6 2021 quiz for 9th grade students. Find other quizzes for Biology and more on Quizizz for free! ... 6. Multiple Choice. Edit. 30 seconds. 1 pt. DNA ... , A state biologist is investigating whether the proportion of frogs in a certain area that are bullfrogs has increased in the past ten years. The proportion ten years ago was estimated to be 0.20. From a recent random sample of 150 frogs in the area, 36 are bullfrogs. The biologist will conduct a test of H0:p=0.20 versus Ha:p>0.20., Correct. This answer is correct because in generation 1 there are 2,000 alleles and 1,000 aa alleles. 2,0003,000=.67=A2,0003,000=.67=A and 1,0003,000=.33=a1,0003,000=.33=a . In generation 2 and future generations the frequency of AA is 2,6003,000=.872,6003,000=.87 and the frequency of aa is .13 . The population will not completely lose the aa ... , Unit 6 Progress Check: FRQ. 10 terms. The_Muffeen_Man. Preview. AP Biology Unit 7 MCQ. 42 terms. Emily_WorcesterDSMS. Preview. Biology study. 42 terms. Silver633. …, The increase in atmospheric CO2 resulted in a greater increase in plant growth under stressed conditions than under ideal conditions. Study with Quizlet and memorize flashcards containing terms like Figure 1 represents a segment of DNA. Radiation can damage the nucleotides in a DNA molecule. To repair some types of damage, a single nucleotide ... , This web page offers study guides, practice quizzes, and cheat sheets for AP Biology Unit 6: Gene Expression and Regulation. However, it does not contain any multiple choice …, Answer: C) Populists sought new markets for United States agricultural goods overseas. 26) Which of the following can be concluded about the status of middle-class people during the late 1800s when the excerpt was produced? Answer: B) B) They experienced a growth of access to leisure time., A) Natural gas burns more efficiently and cleanly than other sources of carbon-based fossil fuels, thus contributing to a reduction in atmospheric carbon dioxide. Which of the following is an example of the process of cogeneration? B) Using wastewater from electricity production for heating homes., 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? Most of the species found in the first static period will be absent in the second static period. , Free-Response Questions. Download free-response questions from past exams along with scoring guidelines, sample responses from exam takers, and scoring distributions. If you are using assistive technology and need help accessing these PDFs in another format, contact Services for Students with Disabilities at 212-713-8333 or by email at ssd@info ..., 2. Multiple Choice. 3. Multiple Choice. Already have an account? Unit 6 AP Bio Test Review quiz for 10th grade students. Find other quizzes for Biology and more on Quizizz for free!, Refrigerator A uses 500 watts per hour when the motor is operating. The motor needs to run an average of 12 hours per day, every day, to stay at a constant, cold temperature. This model of refrigerator lasts an average of 20 years before it needs to be replaced and costs $1,000. Each kWh of electricity costs $0.12.