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All right, so here there are 10 different questions.
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One, darwin's observations in the pampas grasslands of argentina, led him to the conclusion that species changed the time.
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Nine in the 1970s, dr.
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J.
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Reuben warren used a technique not widely used by pathologist at the time, which allowed him to make novel observations.
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This was that he stained bacteria.
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Eight, a researcher recruits 100 volunteers for a study.
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Double blind, only half of them get the real pill.
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Which of the following is a controlled variable.
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So all the volunteers are over 40 years of age.
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So patient age is controlled for.
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Seven, which of the following statements is attributable to george's qvier.
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This will be a, fossils in older sedentary rocks, sedimentary rock strata bear less resemblance to modern organisms than those from recent strata...