Biology: Unity and Div. of Life (Instructor's)
15th Edition
ISBN: 9781337408400
Author: STARR
Publisher: CENGAGE L
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Textbook Question
Chapter 1, Problem 11SA
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
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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
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.
Ideally, an experimental group differs from a control group (a) only with respect to the hypothesis being tested (b) because its subjects are more reliable (c) in that it is less subject to bias (d) in that it is less vulnerable to sampling error (e) only with respect to the variable being studied
Chapter 1 Solutions
Biology: Unity and Div. of Life (Instructor's)
Ch. 1 - Peacock Butterfly Predator Defenses The...Ch. 1 - Prob. 1SACh. 1 - Prob. 2SACh. 1 - Organisms require ______ and ______ to maintain...Ch. 1 - By sensing and responding to change, organisms...Ch. 1 - DNA _____. a. guides form and function b. is the...Ch. 1 - _________ is the transmission of DNA to offspring....Ch. 1 - A butterfly is a(n) ______ (choose all that...Ch. 1 - _______ move around for at least part of their...Ch. 1 - A bacterium is _______ (choose all that apply). a....
Ch. 1 - Bacteria, Archaea, and Eukarya are three ________.Ch. 1 - A control group is _______. a. a set of...Ch. 1 - Fifteen randomly selected students are found to be...Ch. 1 - Prob. 13SACh. 1 - Which of the following statements can be...Ch. 1 - Match the terms with the most suitable...Ch. 1 - A person is declared dead upon the irreversible...Ch. 1 - Prob. 2CTCh. 1 - Why would you think twice about ordering from a...Ch. 1 - Once there was a highly intelligent turkey that...Ch. 1 - In 2005, researcher Woo-suk Hwang reported that he...
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- The 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_forwardWhy is it important to always use a large sample size in an experiment? A. To make sure that spontaneous generation is taking place B. To make sure that there are not two variables being tested C. Make sure the data is qualitative D. To compensate for errors and get more accurate dataarrow_forwardA 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 variablesarrow_forward
- 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 timearrow_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_forwardWhen there is a lot of evidence to support and not sound evidence to disprove an explanation for a phenomenon in science, the idea is elevated to A. explanation B. experimentation C. theoryarrow_forward
- In an experiment, the control group is used to: a Change the variable b Provide a baseline for comparison with the test group c add additional non-dependent variables d demonstrate correlation rather than causation e generate hypothesesarrow_forwardA hypothesis cannot be formed without which of the following? a. experimentation b. observation c. datad. theoryarrow_forwardWhy is it important to have control experiments in addition to the tests being conducted? a.To determine if there was unwanted contamination. b.To determine if experiment yielded an expected result. c.Neither A or B are correct. d.Both A and B are correct.arrow_forward
- James says he has a hypothesis about the way he kicks a football. He says he is a better kicker with his right foot because he is right-handed. a. Why is this hypothesis untestable ? b. How could you make his hypothesis into a testable one?arrow_forwardRead the research article added here and answer the question: 1. Looking at the relationship between conception risk status and shirt color, what type of study is it (correlational, quasi-experimental, experimental)? Group of answer choices A. Quasi-experimental and experimental B. Quasi-experimental C. Correlational D. Experimentalarrow_forwardThe _______ is manipulated by scientists over the course of an experiment. A.)dependent • variable B.)data C.)independent variablearrow_forward
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