Laboratory Manual For Human Anatomy & Physiology
4th Edition
ISBN: 9781260159080
Author: Martin, Terry R., Prentice-craver, Cynthia
Publisher: Mcgraw-hill Education,
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Chapter 1, Problem 6PL
Summary Introduction
Introduction:
Variable is the component that can vary or change in the experiment. An experiment only tests one variable and all other conditions in the experiment are constant. Two types of variables used in the scientific method are the dependent variable and the independent variable.
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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 variable is a part of the experiment that varies or changes.
True
False
an independent variable is the variable measured in an experiment. True or False
Chapter 1 Solutions
Laboratory Manual For Human Anatomy & Physiology
Ch. 1 - To explain biological phenomena, scientists use a...Ch. 1 - Which of the following represents the correct...Ch. 1 - Prob. 3PLCh. 1 - Prob. 4PLCh. 1 - Prob. 5PLCh. 1 - Prob. 6PLCh. 1 - Prob. 7PLCh. 1 - Prob. 8PLCh. 1 - Describe your observations of a possible...Ch. 1 - Write a hypothesis based on your observations.
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- Explain the differences between independent, dependent and controlled variables in an experimentarrow_forwardThe null hypothesis is: That the measured value is zero That the proposed model is not correct and the measured factors have no effect on the pattern That the proposed model is correct and perfectly explains the pattern That the experiment is null and voidarrow_forwardA controlled experiment is one that proceeds slowly enough that a scientist can make careful records of the results. tests experimental and control groups in parallel. is repeated many times to make sure the results are accurate. keeps all variables constant.arrow_forward
- What do you call a sample that goes through all the steps of an experiment but is not exposed to the experimental variable? control group dependent variable independent variable all variables/groups are exposed to the experimental variablearrow_forwardWhich are the most conventional type of experiment involves three major pairs of components?arrow_forwardIdentify the steps involved in designing an experiment.arrow_forward
- Partway through my first semester in college, I tried drawing and labeling pictures as a study tool, and my grades on multiple choice exams improved. I decided to design an experiment to see if this same trick works more generally. I split up students into two groups in my LIFE 102 class: Group A were given the PowerPoint slides for lecture and asked to review the material for their weekly quiz based on the lecture notes only. Group B were given the same PowerPoint slides during lecture and asked to draw the content visible on the slides during lecture in their notebooks. I asked students to share their notes with me so I could confirm which students drew their own pictures and which students used lecture notes only. Then, I evaluated their quiz grades. Write an alternative hypothesis and a null hypothesis for my experiment. Then write a prediction for each of these hypotheses. Label them clearly, as in this structure: Alternative Hypothesis: [general statement of a phenomenon…arrow_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_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
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