Biology
12th Edition
ISBN: 9780078024269
Author: Sylvia Mader, Michael Windelspecht
Publisher: McGraw-Hill Education
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Textbook Question
Chapter 1, Problem 8A
Experiments examine the contribution of the to the _____ observation.
a. responding variable
b. control group
c. standard deviation
d. experimental variable
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A control group is_______ . a. a set of individuals that have a certain characteristic or receive a certain treatment b. the standard against which an experimental group is compared c. the experiment that gives conclusive results
Why the results of the Swan-neck flask experiment were reliable ?: Select one: a. Because it maintained no controls at all b. Because proper controls were maintained and only one variable changed at a time c. Because many controls were maintained d. Because it was repeatedly done by several scientists e. Because it tested all variables at the same time
A controlled experiment ________.
A.
includes one group for which the scientist controls all variables
B.
is repeated many times to ensure that the results are accurate
C.
includes at least two groups, one of which does not receive the experimental treatment
D.
includes at least two groups, one differing from the other by two or more variables
Chapter 1 Solutions
Biology
Ch. 1.1 - Prob. 1CYPCh. 1.1 - List the common characteristics of all living...Ch. 1.1 - Explain how adaptations relate to evolutionary...Ch. 1.2 - Explain how natural selection results in new...Ch. 1.2 - List the levels of taxonomic classification from...Ch. 1.2 - Describe the differences that might be used to...Ch. 1.3 - Identify the role of the experimental variable in...Ch. 1.3 - Distinguish between the roles of the test group...Ch. 1.3 - Prob. 3CYPCh. 1.4 - Explain how a new technology differs from a...
Ch. 1.4 - Prob. 2CYPCh. 1.4 - Summarize how emerging diseases and climate change...Ch. 1 - Prob. 1ACh. 1 - The level of oganization that includes cells of...Ch. 1 - The process that involves passing on genetc...Ch. 1 - Which of the following includes prokaryotic...Ch. 1 - The most inclusive level of classification is a....Ch. 1 - The process by which evolution occursis called a....Ch. 1 - Prob. 7ACh. 1 - Experiments examine the contribution of the to the...Ch. 1 - Prob. 9ACh. 1 - Prob. 10ACh. 1 - Which of the foIlowing represents the permanent...Ch. 1 - H5N1 and SARS are examples of a extinct species....Ch. 1 - An investigator spills dye on a culture plate and...Ch. 1 - You want to grow large tomatoes, and you notice...Ch. 1 - A scientist wishes to test her hypothesis that a...
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- A control group is __________. a. a set of individuals that have a certain characteristics or receive a certain treatment b. the standard against which an experimental group is compared c. the experiment that gives conclusive resultsarrow_forwardThe purpose of the constant is to: a. allow for adjustment of the control b. eliminate other potential factors/variables in the experiment c. allow for the dependent variable to show the necessary outcome d. help prove the hypothesis correctarrow_forwardWhich of the following is not correctly linked?a. model: a representation of an object used in an experimentb. standard deviation: a form of statistical analysisc. principle: a theory that is not supported by experimental evidenced. data: the results of an experiment or observationarrow_forward
- mpletion Status: Moving to another question will save this response. Question 2 A testable explanation for a natural phenomenon is a(n) O a. prediction b. model c. conclusive description d. experiment e hypothesis A Moving to another question will save this response. AR SONYarrow_forwardWhich of the following is not mentioned by Marder (2011) as a category of experimental research? A. Developing a mathematical model of a biology process B. Measuring a value C. Measuring a relationship between variables D. Using computers for analysis E. Improving and industrial productarrow_forwardThe 'control group' is an essential component of an experiment. This is because 1. A control group allows one to determine if a particular result is due to the experimental variable. 2. No, it's not essential in experimentation. A control group is not always necessary it depends on the experiment. 3. A control group allows for multiple variables to be tested at the same time. 4. A control group is required for the development of a prediction.arrow_forward
- a. 20. In science, a theory is defined as a. a speculative guess. b. a hypothesis. C. an explanation that is well documented and consistent with the evidence. d. a description of a phenomenon for which there is no explanation. e. a personal conviction.arrow_forwardA scientist is curious about the effects of diet on the gut length of spadefoot toad tadpoles. She collects tadpoles from pools and dissects them to determine the length of their gut and their diet. This study is…. Group of answer choices A. observational because she is not manipulating an independent variable B. possibly the most boring thing I have ever read C. experimental because she is doing it in the lab D. observational because she is doing it outside E. experimental because she is controlling the independent variablearrow_forwardWhen conducting quantitative research, the researcher col-lects information to support a hypothesis. This information would be identified as:a. The subjectb. Variablesc. Datad. The instrumentarrow_forward
- to test an hypothesis about a given variable, experimental and control groups are tested in parallel. Which of the following best explains the dual experimentsarrow_forwardContrary to Jean Piaget's assertions, research using infant looking time demonstrates that even 3- to 5-month-old infants possess the concept of object permanence. In this line of research, an infant's looking time would be considered the _______. A. confounding variable B. control variable C. dependent variable D. independent variablearrow_forward(1 question with multiple steps please answer) Identify the component characteristics of a scientific investigation Suggest alternative hypotheses that could be tested by the design Evaluate the validity of conclusions based on the given results Suggest ways to improve the experimental design Define and recognize examples of the experimental group, experimental variable, control group, control variable, independent variable, and dependent variable, and dataarrow_forward
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