Stern's Introductory Plant Biology
14th Edition
ISBN: 9781259682742
Author: James Bidlack, Shelley Jansky, Kingsley R Stern
Publisher: McGraw-Hill Education
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Chapter 1, Problem 4RQ
In terms of biological experiments, what are hypotheses and controls?
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Why is it important to have a control for an experiment?
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a) Does the data support your hypothesis?
b) How could you improve this experiment? Consider the other factors you could have / should have controlled in this experiment.
Chapter 1 Solutions
Stern's Introductory Plant Biology
Ch. 1 - Prob. 1RQCh. 1 - What is meant by the scientific method?Ch. 1 - Prob. 3RQCh. 1 - In terms of biological experiments, what are...Ch. 1 - 5. What is the oldest branch of botany, and why...Ch. 1 - What are the basic features of each of the other...Ch. 1 - Since humans survived on wild plants for thousands...Ch. 1 - Prob. 2DQCh. 1 - 3. How do you suppose that Stone Age peoples...Ch. 1 - Why do you suppose that many of the early...
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- A properly designed experiment contains the following: positive and negative controls and experimental conditions. positive control and experimental conditions. positive and negative controls control and experimentalarrow_forwardExplain why we need to control variables that are not being tested in an experiment?arrow_forwardHow do scientists derive testable hypotheses? Explain with an example?arrow_forward
- A 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_forwardWhat is control group? Explain the purpose of a control in an experiment.arrow_forwardWhat will a hypothesis become if it is supported by repeated experimentation?arrow_forward
- Why do scientists design experiments to disprove the hypothesis they are testing instead of trying to prove that the hypothesis is correct?arrow_forwardYou 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 are three important thing you will consider when settting up an experiment to investigate a phenomenon? Explain why?arrow_forward
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