Principles of Biology
2nd Edition
ISBN: 9781259875120
Author: Robert Brooker, Eric P. Widmaier Dr., Linda Graham Dr. Ph.D., Peter Stiling Dr. Ph.D.
Publisher: McGraw-Hill Education
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Chapter 1, Problem 10TY
Summary Introduction
Introduction:
Hypothesis testing is also known as the scientific method is used to test the validity of a hypothesis. When the hypothesis is tested, the experiments are done on a control group and on an experimental group.
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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 experimental
The '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.
What variable is the one that you can manipulate or change? It is sometimes called experimental variable
Chapter 1 Solutions
Principles of Biology
Ch. 1.1 - Look ahead to Figure 4.15. Which of these...Ch. 1.1 - The wing of a bird, the wing of an insect, and the...Ch. 1.1 - At which level of biological organization would...Ch. 1.1 - Prob. 2TYKCh. 1.2 - Among mammals, give two examples of how the tail...Ch. 1.2 - Prob. 2CCCh. 1.2 - Prob. 1BCCh. 1.2 - Prob. 3CCCh. 1.2 - Prob. 1TYKCh. 1.2 - Prob. 2TYK
Ch. 1.3 - Prob. 1CCCh. 1.3 - Prob. 2CCCh. 1.3 - Prob. 1TYKCh. 1.3 - Prob. 2TYKCh. 1.3 - Prob. 3TYKCh. 1 - A bird maintains a relatively stable internal body...Ch. 1 - Populations of organisms change over the course of...Ch. 1 - A bio1otst is studying the Living organisms in a...Ch. 1 - Which of the following is an example of horizontal...Ch. 1 - The scientific name for humans is Homo sapiens....Ch. 1 - The underlying factor that explains the unity and...Ch. 1 - By observing certain desert plants in their native...Ch. 1 - In science, a theory should be equated with...Ch. 1 - Conducting research without a preconceived...Ch. 1 - Prob. 10TYCh. 1 - Of the first eight characteristics of life...Ch. 1 - Explain how it is possible for evolution to result...Ch. 1 - In your own words, describe the 12 principles of...Ch. 1 - Discuss whether or not you think that theories in...Ch. 1 - Prob. 2CBQ
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- what is the difference between a quasi-experimental design and an experimental designarrow_forwardWhy is it important to have a control for an experiment?arrow_forwardAll of the following are possible steps of scientific investigation except for ____________. Question 7 options: None of the other answers are possible steps of scientific investigation. All of the other answers are possible steps of scientific investigation. development of observations and experiments to test the hypotheses the development of one or more working hypotheses or models to explain facts the collection of scientific facts through observation and measurement assumption of conclusions without prior experimentation or observationarrow_forward
- When performing an experiment, the _________________________ may change depending on time, temperature, pH, or other factors. Control Applied research Basic science Variablearrow_forwardList the three types of variables that are taken into account when designing an experiment, and briefly define each in your own wrods.arrow_forwardHow is an experiment different from other scientific test such as observational studies or natural experiments?arrow_forward
- What is control group? Explain the purpose of a control in an experiment.arrow_forwardExplain the differences between independent, dependent and controlled variables in an experimentarrow_forwardWhat is the difference between quantitative and qualitative analysis? Give several examples. Define quantitative analysis. What are some of the organizations that support the use of the scientific approach?arrow_forward
- What are the logical steps used by scientists to solve problems called? Group of answer choices applied science descriptive research pure science the scientific methoarrow_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_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
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