Master Biology with Fun Quizzes & Brain Teasers!

3. 1. As a grade 11 learner,what are the requirements of participating in local governmentelections?3. 2. When a group of people are dissatisfied with the services of their municipality, how cthey make their voices heard without being disruptive?3. 3. Explain the relationship between government and business. 3. 4. How can citizens contribute towards the law-making process in South Africa?3. 5. Explain the concept "rule of law"3. 6. Suggest how a minority party may impact the la3. 7. How can sports detract nation building
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A student went for a short run to investigate the effect of physical activity on his pulse rate. The resting pulse rate for the student was 60 beats per minute and during exercise his pulse rateincreased to 144 beats per minute. Calculate the percentage increase in pulse rate
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Once the threshold voltage triggers an action potential, what causes action potentials to be generated? a. Lons channels are opened and positive ions diffuse into the cell. b. Lons channels are opened and negative ions diffuse into the cell. c. Lons channels are opened and positive ions diffuse out of the cell. d. Lons channels are opened and negative ions diffuse out of the cell.
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(03. 02 HC)A group of scientists build a special enclosure in the local bay to separate their experiment from the rest of the ocean. They wish to determine whether their experiment isa closed system by using a colored dye that is placed in the water. What result would best indicate that their experiment is a closed system, and why?
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PLEASE HELP!!Q. 1. How does Pavan believe we should think about the value of a mangrove tree?Q. 2. According to the video, what misconceptions exist about wood as a building material?Q. 3. Green suggests that there is something special about the experience of walking into a wooden building. Do you agree? Why?
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Fetal health screenings have been developed to test for a variety of genetic, environmental, and pathogenic diseases. Which ofthe following would be a logical argument for conducting a genetic screening rather than a pathogenic screening to identify adisease or condition?A genetically carried disease or condition, which can be treated by altering environmental factors, would have nobearing on pathogen transmission,A genetically carried disease or condition, which is contagious, should be identified early to increase the odds ofcontainment; whereas a pathogenically transmitted condition will confine itself to one population. A genetically carried disease or condition, which can be treated with a vaccination, should be identified early toincrease the odds of an infant's survival; whereas a mother's immunity would protect an infant from pathogens. A genetically carried disease or condition, which can be treated with gene therapy, should be identified early toincrease the odds of an infant's survival, whereas a mother's immunity would protect an infant from pathogens.
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The pre cell (before the appearance of life) formed during chemical evolution has an outer membrane that is a phospholipid bilayer. given the properties of the water in the prebiotic ocean. one would expect that h2o and ions would: _______
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Energy is obtained from macronutrients via unique metabolic pathways. this question compares the simpler chemical reactions that occur within these pathways. fill in the blank about metabolic reactions. in the process of ____________, water is always released.
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What did you observe with the halves of the drawing you and a family member made , when yoou placed them beside the mirror?
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Please give 5 similarities between oxygen cycle and water cycle,and 5 differences between oxygen cycle and water cycle
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The International Space Station is a huge science laboratory that orbits Earth every 92 minutes. Experiments on board the International Space Station can help scientists learn
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Describe the function of each organelle.Vacuoles
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what organizational level can produce the most viable offspring
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A city is powered by energy from coal. the city incorporates the use of biofuels from existing corn crops as an alternate source of energy.what can be an environmental impact of this change?a. decrease in biodiversityb. increase in pollutionc. decrease in carbon emissionsd. increase in surface temperatures
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In which kind of monohybrid cross would you expect to find a phenotypic ratio of 3:1 among the offspring?
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Consider the following scenario:In a muddy lake environment, some fish have brown scales. Most fish, however, have silver scales. Predators have a harder time seeing the fish with brown scales. Which term best describes the brown scales?(1 point)advantageous traitpredominant phenotypeinactivated genenew mutation
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A solution is formed by dissolving 3.65 mols of sodium chloride in enough water to give 1.50 l of solution. what is the molarity of the solution?
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A research group is designing a home to be heated with passive solar heating. This allows the home to be heated using solar energy that radiates into the home through windows. What scientific principle could the research group utilize in order to maximize the efficiency of their design? A)Thinner window panes will retain more heat in the summer than thicker window panes. EliminateB)Latex paints will reflect light more efficiently than enamel paints used on the walls. C)Darker flooring materials will absorb and retain solar energy more efficiently than lighter materials. D)Energy efficient light bulbs will utilizer less electricity than incandescent bulbs used in the lamps and other lighting fixtures
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A material was cooled from 100C to 40C. What is the temperature change?The specific heat of water is 4. 18J/goC. I need the full explanation would mean a lot to me
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According to franchise business review, over 50% of all food franchises earn a profit of less than $50,000 a year. in a sample of 142 casual dining restaurants, 81 earned a profit of less than $50,000 last year. 1) what is the point estimate of the proportion of casual dining restaurants that earned a profit of less than $50,000 last year?2) determine the margin of error and provide a 95% confidence interval for the proportion of casual dining restaurants that earned a profit of less than $50,000 last year. 3) how large a sample is needed if the desired margin of error is. 03?
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The zebra mussel is originally native to the Black and Caspian Seas of Asia. Zebra mussels were first detected in the Hudson River of New York in 1991. Before the arrival of zebra mussels, the Hudson River supported populations of native mussels. (a) Describe ONE way an invasive species, such as the zebra mussel, can decrease the carrying capacity for a native species in an ecosystem. B) Describe ONE characteristic of an r-selected species that could increase the likelihood of the r-selected species being a more successful invasive species than K-selected species. (c) Scientists want to reduce the population of zebra mussels in the Hudson River. (i) Propose a practical solution for reducing the zebra mussel population in the Hudson River. (ii) Describe ONE potential negative ecological consequence of your proposed solution for reducing the zebra mussel population in the Hudson River
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6. Compare and contrast the followinga. Arachnids vs Crustaceans vs Merostomata vs InsectsPlease help me
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How do the chromosomes at the end of meiosis i compare with the chromosomes at the end of meiosis ii?
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Break down the following word into the combining forms and suffixes. enter the component part into one cell. use as many cells as necessary: you may need all cells provided. if no entry is required, leave the cell empty. for example, cyanosis=cyan/o i osis
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