INTRODUCTION
RESEARCH AND SCIENTIFIC METHODS
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Which statement best expresses a basic scientific assumption?
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A-Interpretation of experimental results has provided explanations for all natural phenomena.
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B-If a conclusion is valid, similar investigations by other scientists should result in the same conclusion.
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C-For any conclusion to be valid, the design of the experiment requires that only two groups be compared.
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D-After a scientist formulates a conclusion based on an experiment, no further investigation is necessary.
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Explanation:
Detailed explanation-1: -In this experiment, the chemical messenger would be the yeast-glucose solution. The yeast-glucose solution would be able to change the pH of the liquid in the flask because it contains a chemical that is able to do so.
Detailed explanation-2: -Marginal analysis is an examination of the additional benefits of an activity compared to the additional costs incurred by that same activity.
Detailed explanation-3: -A researcher concludes from a 10-year study that the biodiversity of an ecosystem had increased. Which set of observations represents evidence for this claim? There were more niches and greater stability in the ecosystem.
There is 1 question to complete.