Life Science Final Exam Latest 2022/2023 Already Solved

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The scientific method is used to - ANSWER specific questions about the natural world A scientific hypothesis has all the following features EXCEPT that it is - ANSWER able to be proven true Whic... h of the following is an appropriate scientific hypothesis? - ANSWER People catch colds because of exposure to cold temperature What hypothesis was tested by Warren and Marshall during their research involving H. pylori bacteria and stomach ulcers? - ANSWER The cause of many stomach ulcers is the bacterium H. pylori, not spicy food. Each of the following is a testable hypothesis EXCEPT - ANSWER being a good driver makes you less likely to catch a cold Which of the following hypothesis is NOT testable? - ANSWER The dinosaur T.Rex was a scavenger, not a predator Which of the following statements is a testable scientific hypothesis? - ANSWER Eating fish reduces the chance of having a stroke A _________________ is a factor in an experiment that can be manipulated - ANSWER variable Consider an experiment in which subjects are given a pill to test its effectiveness on reducing the duration of a cold. Which of the following is the best way to treat the control group? - ANSWER Give the control group a pill that does not affect the duration of colds. The most effective control subjects in a test of an experimental treatment are - ANSWER treated the same as experimental subjects but not given the experimental treatment An experiment is called double blind when - ANSWER neither the subjects nor the researchers know who is in the experimental and control groups Bias in an experiment can occur when - ANSWER All of the above are correct In science, an individual's personal experience or endorsement is considered - ANSWER anecdotal evidence Imagine some table sugar dissolved in water. Which term best describes the water? - ANSWER solvent Which term best describes the sugar in a sugar-water solution? - ANSWER solute Which of the following is an element? - ANSWER Hydrogen Because the electrons in a water molecule are shared unequally between hydrogen and oxygen, water is said to be - ANSWER polar Which of the following are found in the nucleus of an atom? - ANSWER neutrons and protons [Show More]

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