Biology Today and Tomorrow without Physiology (MindTap Course List)
5th Edition
ISBN: 9781305117396
Author: Cecie Starr, Christine Evers, Lisa Starr
Publisher: Cengage Learning
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Chapter 1, Problem 1DID
Summary Introduction
To match: The experimental groups with their relevant control groups.
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Peacock Butterfly Predator Defenses The photographs below represent theexperimental and control groups used in the peacock butterfly experiment discussedin Section 1.6. See if you can identify the experimental groups and match them upwith the relevant control group(s). Hint: Identify which variable is being tested in eachgroup (each variable has a control).
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Why are controls needed when conducting scientific experiments?
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Chapter 1 Solutions
Biology Today and Tomorrow without Physiology (MindTap Course List)
Ch. 1 - Figure 1.7 Taxonomic classification of five...Ch. 1 - D. The researchers painted out the spots of some...Ch. 1 - Figure 1.15 Example of error bars in a graph. This...Ch. 1 - Prob. 1DIDCh. 1 - Prob. 1SQCh. 1 - Prob. 2SQCh. 1 - ______ is the transmission of DNA to offspring. a....Ch. 1 - A process by which an organism produces offspring...Ch. 1 - Prob. 5SQCh. 1 - ____________ move around for at least part of...
Ch. 1 - Prob. 7SQCh. 1 - DNA _______. a. guides form b. is the basis of...Ch. 1 - butterfly is a(n) _____ (choose all that apply)....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 individuals...Ch. 1 - Prob. 13SQCh. 1 - Match the terms with the most suitable...Ch. 1 - In one survey, fifteen randomly selected students...Ch. 1 - A person is declared to be dead upon the...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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- Peacock Butterfly Predator Defenses The photographs below represent the experimental and control groups used in the peacock butterfly experiment discussed in Section 1.6. See if you can identify the experimental groups and match them up with the relevant control group(s). Hint: Identify which variable is being tested in each group (each variable has a control). A Wing spots painted out B Wing spots visible; wings silenced C Wing spots painted out; wings silenced D Wings painted but spots visible E Wings cut but not silenced F Wings painted, spots visible; wings cut, not silenced Peacock butterfly experiment A With wings folded, a peacock butterfly resembles a dead leaf, so it is appropriately camouflaged from predatory birds. B When a predatory bird approaches, a butterfly flicks its wings open and closed, revealing brilliant spots and producing hissing and clicking sounds. C Researchers tested whether the wing-flicking and sound-making behaviors of peacock butterflies affected predation by blue tits (a type of songbird). Experimental Treatment Number of Butterflies Eaten Wing spots concealed 5 of 10 (50%) Wings silenced 0 of 8 (0%) Wing spots painted out and wings silenced 8 of 10 (80%) No treatment 0 of 9 (0%) Proceedings of the Royal Society of London, Series B (2005) 272: 12031207. D The researchers painted out the spots of some butterflies, cut the soundmaking part of the wings on others, and did both to a third group; then exposed each butterfly to a hungry blue tit for 30 minutes. Results support only the hypothesis that peacock butterfly spots deter predatory birds. FIGURE 1.12 Testing the defensive value of two peacock butterfly behaviors.arrow_forwardPeacock Butterfly Predator Defenses The photographs below represent the experimental and control groups used in the peacock butterfly experiment discussed in Section 1.6. See if you can identify the experimental groups and match them up with the relevant control group(s). Hint: Identify which variable is being tested in each group (each variable has a control). A Wing spots painted out B Wing spots visible; wings silenced C Wing spots painted out; wings silenced D Wings painted but spots visible E Wings cut but not silenced F Wings painted, spots visible; wings cut, not silenced Peacock butterfly experiment A With wings folded, a peacock butterfly resembles a dead leaf, so it is appropriately camouflaged from predatory birds. B When a predatory bird approaches, a butterfly flicks its wings open and closed, revealing brilliant spots and producing hissing and clicking sounds. C Researchers tested whether the wing-flicking and sound-making behaviors of peacock butterflies affected predation by blue tits (a type of songbird). Experimental Treatment Number of Butterflies Eaten Wing spots concealed 5 of 10 (50%) Wings silenced 0 of 8 (0%) Wing spots painted out and wings silenced 8 of 10 (80%) No treatment 0 of 9 (0%) Proceedings of the Royal Society of London, Series B (2005) 272: 12031207. D The researchers painted out the spots of some butterflies, cut the soundmaking part of the wings on others, and did both to a third group; then exposed each butterfly to a hungry blue tit for 30 minutes. Results support only the hypothesis that peacock butterfly spots deter predatory birds. FIGURE 1.12 Testing the defensive value of two peacock butterfly behaviors.arrow_forwardFigure 1.15 Example of error bars in a graph. This graph was adapted from the peacock butterfly research described in Section 1.5. The researchers recorded the number of times each butterfly flicked its wings in response to an attack by a bird. The squares represent average frequency of wing flicking for each sample set of butterflies. The error bars that extend above and below the dots indicate the range of valuesthe sampling error. Figure It Out: What was the fastest rate at which a butterfly with no spots or sound flicked its wings?arrow_forward
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