EBK BIOLOGY
4th Edition
ISBN: 8220102797376
Author: BROOKER
Publisher: YUZU
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Question
Chapter 1.3, Problem 3EQ
Summary Introduction
To explain: The way in which the experimental group differs from a control group in an experiment.
Introduction: Hypothesis is defined as a suggested or proposed reasoning for a phenomenon that is naturally occurring in the environment. Hypothesis testing is a process to test the validity and correctness of a suggested hypothesis. Hypothesis testing involves two groups: a control group and an experimental group.
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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 contaminated
What is control group?
Explain the purpose of a control in an experiment.
Name the key elements shared by all successful experiments.
Chapter 1 Solutions
EBK BIOLOGY
Ch. 1.1 - At which level of biological organization would...Ch. 1.1 - Prob. 1BCCh. 1.2 - What is the relationship between biological...Ch. 1.2 - How does the concept of a tree of life differ from...Ch. 1.2 - Why is it useful to place organisms into taxonomic...Ch. 1.2 - Biologists sometimes say that the genome is the...Ch. 1.2 - Figure 1.10 The three domains of life. Two of...Ch. 1.3 - What is the purpose of a control group in...Ch. 1.3 - Explain how discovery-based science helped...Ch. 1.3 - Discuss the difference between discovery-based...
Ch. 1.3 - What are the steps in the scientific method, also...Ch. 1.3 - Prob. 3EQCh. 1 - Prob. 1TYCh. 1 - Populations of organisms change over the course of...Ch. 1 - Prob. 3TYCh. 1 - Which of the following is an example of horizontal...Ch. 1 - The scientific name for humans is Homo sapiens....Ch. 1 - The complete genetic makeup of an organism a....Ch. 1 - Prob. 7TYCh. 1 - Prob. 8TYCh. 1 - Prob. 9TYCh. 1 - What is the purpose of using a control group in a...Ch. 1 - Of the first eight principles of biology described...Ch. 1 - Explain how it is possible for evolution to result...Ch. 1 - Prob. 3CQCh. 1 - Discuss whether or not you think that theories in...Ch. 1 - Prob. 2COQ
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- From the given graph, draw conclusions, practical implications, theoretical implications and methodological implications.arrow_forwardHow can performance bias be reduced in animal experiments in conducting vivo experimentsarrow_forwardPlease do not give solution in image format thanku A procedure for ensuring that ________ is experimental design. Question 1 options: A) the change in the dependent variable may be solely attributed to the change in the independent variable B) any and all effects on all experimental values are measured C) the change in the dependent variable may be solely attributed to the change in the extraneous variable D) the change in the independent variable may be solely attributed to the change in the complex variablearrow_forward
- What are some of the assumptions behind the logic of the experiment described in Figure 5.26?arrow_forwardwhat is a controlled experiment?arrow_forwardA controlled experiment is one that(A) proceeds slowly enough that a scientist can make carefulrecords of the results.(B) tests experimental and control groups in parallel.(C) is repeated many times to make sure the results are accurate.(D) keeps all variables constant.arrow_forward
- Explain the concept of combinatorial control.arrow_forwardWhat is a null hypothesis in experiments? How is a null hypothesis used in science experiments? Note: Provide an answer with 150-200 wordsarrow_forwardA 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_forward
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