Human Biology: Concepts and Current Issues (8th Edition)
8th Edition
ISBN: 9780134042435
Author: Michael D. Johnson
Publisher: PEARSON
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Chapter 1, Problem 4TY
Summary Introduction
Introduction:
In biology, with all the inquisitive things in our surrounding gives us a chance to make an observation. Anything particular, which catches the attention of biologists, is observed and goes through the logical problem-solving method, which is known as scientific method. In this approach, observation is made, questions are asked, and hypothesis formed is tested using different experiments.
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Why should the procedures results of an experiment go through peer review
what is the difference between a quasi-experimental design and an experimental design
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
Human Biology: Concepts and Current Issues (8th Edition)
Ch. 1 - What should medical professionals, politicians, or...Ch. 1 - Will you vaccinate your children? Why or why not?...Ch. 1 - Living things have a different molecular...Ch. 1 - Explain the meaning of the term homeostasis.Ch. 1 - Name four features that together contribute to our...Ch. 1 - Describe the difference between a hypothesis and a...Ch. 1 - Discuss the role of scientists in helping us solve...Ch. 1 - To which of the following domains of life do...Ch. 1 - To which of the following domains do unicellular...Ch. 1 - New scientific knowledge is gained through a...
Ch. 1 - Prob. 4TYCh. 1 -
5. A broad hypothesis that has been supported by...Ch. 1 - Which of the following is used when developing a...Ch. 1 - Prob. 7TYCh. 1 - Consider all of the organisms (human as well as...Ch. 1 -
9. Which of the following lists the steps of the...Ch. 1 - In graphs, which of the following is usually...Ch. 1 - An acceptable scientific hypothesis: a. can be...Ch. 1 - Prob. 12TYCh. 1 - Prob. 13TYCh. 1 - The maintenance of a relatively stable internal...Ch. 1 - All of the following are features that...Ch. 1 - A magician has a coin that he says (hypothesizes)...Ch. 1 - Your roommate is writing a paper on the subject of...Ch. 1 - Prob. 3AWKCh. 1 - Prob. 4AWKCh. 1 -
5. You are trying to convince your friend who...Ch. 1 - Prob. 6AWKCh. 1 - Explain why religious explanations cannot disprove...
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- Why 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_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_forwardThe question is: Is there a drug to treat or prevent the disease? •follow the important parts of a fair test; show a clear description of how the test should be performed (paragraph or a step-by-step procedure); justify an appropriate choice of technology for this type of experiment.arrow_forward
- I answered with a and c but keep getting told its the wrong answer. Which of the following is not a component of effective experimental designs in the early stages of a scientific study? Select one or more: a. small sample sizes b. experimental groups taking a placebo c. double blind experiments d. short duration e. animal models f. repetitive testingarrow_forwardA properly designed experiment contains the following: positive and negative controls and experimental conditions. positive control and experimental conditions. positive and negative controls control and experimentalarrow_forwardA common feature to all scientific experiments is the employment of experimental _____________.arrow_forward
- Identify the section within a research article where you would expect to find different types of information. 1. The information that was known before the research was conducted. 2. Step by step description of how the research was conducted. 3. A bride summary/overview of the research article. a. Abstract b. Introduction c.Materials and Methods d. Results e.Discussion f.Works Citedarrow_forwardWhen performing an experiment, the _________________________ may change depending on time, temperature, pH, or other factors. Control Applied research Basic science Variablearrow_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
- In a experiment, the condition that is a manipulated by a scientist is thearrow_forwardExplain how Observational Studies are different than Experiments. Be sure to describe the main purpose and goal for each of these research methods.arrow_forwardA 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_forward
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