Life: The Science of Biology
11th Edition
ISBN: 9781319010164
Author: David E. Sadava, David M. Hillis, H. Craig Heller, Sally D. Hacker
Publisher: W. H. Freeman
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Chapter 1.2, Problem 1R
Summary Introduction
To review:
The relationship between an experiment and a hypothesis.
Introduction:
A hypothesis is a simple and testable condition, which is written as a statement. It is a prediction about what will happen. It is the tentative answer to a scientific question and leads to one or more predictions that can be tested by experiment.
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Life: The Science of Biology
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- By convention, when the difference between the observed experimental outcome and the expected outcome is less than 5 percent (< 0.05), the experimental results are considered to be Group of answer choices a)less than one standard deviation from the mean. b)within the normal range. c)not significant. d)statistically significant and different from the expected outcome.arrow_forwardWhich are the most conventional type of experiment involves three major pairs of components?arrow_forwardWhat is the function of a control in an experiment?arrow_forward
- What is the difference between an independent and dependent variable. Provide an example of each from a hypothetical experiment.arrow_forwardWhat is control group? Explain the purpose of a control in an experiment.arrow_forwardA well-designed experiment will contain both positive and negative controls. Which of the following is a false statement? Choose one from the following: (A) a positive control experiment is missing some of the components of the experiment and should give a negative result (B) a positive control experiment contains all of the components of an experiment and should give a positive result (C) a negative control experiment is missing the element being tested and should give a negative result (D) if there are multiple components of an experiment, there should be multiple negative controls (E) if a negative control experiment give positives results, it is likely that the experiment is contaminatedarrow_forward
- You are asked to draw and explain the goal of the Meselson-Stahl (1958) Experiment as outlined in the classroom. You need to draw your own diagram and use short sentences to explain the steps and/or important points, deductions. Clearly state what happens at each step.arrow_forwardWhat is a control group in experiments?arrow_forwardA General Biology student designed an experiment to see if there was a correlation between the length of a person’s arm and how far they could throw a ball. In her experiment, the dependent variable will be: A) This size of the ball B) Arm Length C) The weather on the day they ran the experiment D)Distance the ball is thrown E)Genderarrow_forward
- Is it always good to accept a valid deductive argument? Please explain your answer with an example.arrow_forward What is the dependent variable or what is being measured? what is the independent variable or what is being changed?arrow_forwardWhat type of event causes founder effect? what type of event causes bottleneck effect?arrow_forward
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