Tham khảo tài liệu 'delta's key to the next generation toefl test part 60', ngoại ngữ, toefl - ielts - toeic phục vụ nhu cầu học tập, nghiên cứu và làm việc hiệu quả | Answer Key 6. B 7. C-B-D-A 8. B 9. 10. C D The professor says The Law of Effect states that whether or not a person will tvpeat a behavior depends on the effect that behavior has If the action is not rewarded or if it s punished it s not likely to be repeated. If a boy stops pulling a cal s tail when the cat bites him. you can infer that it is because of the Law of Effect. The cat s bite punishes the boy s action so the boy does not repeat the action. The professor says 1 First using available knowledge a psychologist makes a hypothesis about behavior 2 Then the psychologist tests the hypothesis inrough an experiment 3 .many repetitions oj the experiment must be conducted under different conditions 4 Only repeated verification. will result in a law. The professor says .marshes usually don t contain trees or shrubs. Marsh vegetation is usually soft-stemmed or herbaceous for example. grasses. Yes Dead plants and animals contribute energy to the food chain .an abundance of dead plant and animal material energy-rich organic matter enters the food chain each year. Yes Acids from decaying vegetation turn the water brown The wafer in marshes may become tea -colored or dark blown because of the organic acids from the decaying vegetation. No The marsh is drained for agricultural development Humans have drained marshes but this is not a biological process. Yes Bacteria and fungi break down organic matter in the water And much of this energy rich biomass is broken down by bacteria and water fungi. Wetlands have been destroyed because they were thought to cause disease In the past humans have viewed these marshes and most wetlands as the source of .disease. Also land was needed for agriculture Humans have destroyed a lot of wetlands mostly to make way for agricultural development. Quiz 6 p. 279 1. A D 2. 5. D-A-B-C 6. C-A-B 7. 8. Plant life and sunlight characterize the upper zone The clear sunlit waters near the surface are an ideal place for the microscopic .
