EBK BIOLOGY
4th Edition
ISBN: 8220102797376
Author: BROOKER
Publisher: YUZU
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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
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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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- Explain the concept of combinatorial control.arrow_forward1. What are the independent and dependent variables in each of the experiments? 2. What information should be added to the diagram to give the reader a better understanding of how these experiments were conducted? 3. What items should have been CONTROLLED in the experiments? 4. How much confidence would you have in the conclusion of experiment 3 if you found out that the temperature was not controlled? Explain your reasoning. 5. Create your own flow chart to answer a causal question.arrow_forwardAn independent variable is… Select one: typically not included in controlled experiments Factor being manipulated factor showing response variable held constant during an experimentarrow_forward
- Replication of an experiment in science is O conducting the same experiment and measurements on a several independent subjects or experimental units O conducting the same experiments and measurements several times on the same subject or experimental unit O Doing the same experiment over and over until finding the desired resultarrow_forwardBy 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_forwardCan you give me some examples of a controlled variable and a controlled experimentarrow_forward
- Refer back to the information about R-E-C tables from your pre-lab activity to answer Question 1. A R-E-C table allows you to evaluate how new information... •reinforces previous knowledge •extends your previous knowledge •challenge your understanding Making a quick R-E-C tables is an excellent summary exercise to do right after a lecture or reading a complex book chapter. Placing new information in the context of your prior knowledge is helpful for learning, and so is evaluating what is still fuzzy for yourself. This is another example of metacognitition (thinking about thinking) Create a R-E-C table for this week's lab around the topics of mitosis, mutation, and cancer, following the example format below. Include a sentence for each section (reinforces, extends, and challenges).arrow_forwardDevelop a hypothetical research scenario that would warrant the application of the grounded theory approach. What type of design would be best utilized along with this approach?arrow_forwardBasic research is key to innovation, but has a funding problem. In terms of the quality of the science, which of the following is the best solution? Increase the public’s investment in basic research (e.g., individual taxes, tuition) Ask the beneficiaries of basic research (e.g., tech, industry, pharma) to directly fund research at universities Tax the beneficiaries of basic research (e.g., tech, industry, pharma) and distribute funds to basic research through an unaffiliated intermediary Demand that the beneficiaries of basic research (e.g., tech, industry, pharma) conduct more basic research within their organizations Which of the following does NOT represent an adaptation to absorb and withstand high forces in a hyena jaw? Spongy bone Incorporation of minerals and proteins into the biological material experiencing the force Arrangement of fibers in parallel 3D structures ???? Fusion of small bonesarrow_forward
- What do you call the information gathered from an experimentarrow_forwardWhat are the novel technologies, experiments, or materials (in vitro or silico) that provide ‘replacements’ for animals in experimentations?3R'SREPLACEMENT: means the substitution of living animals by in vitro techniques (eg cells, tissues), computerized models, etc.arrow_forwardThe α level in the context of reporting findings from a randomized controlled trial corresponds to the probability of concluding: Correctly that the treatment and control groups differ with respect to risk of outcome. That the treatment and control groups differ with respect to outcome when in fact they do not. Correctly that the treatment and control groups do not differ with respect to outcome. That the treatment and control groups do not differ with respect to outcome when in fact they do. That you don’t have sufficient information to present results.arrow_forward
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