Inquiry into Life
16th Edition
ISBN: 9781260482638
Author: Mader, Sylvia
Publisher: MCGRAW-HILL HIGHER EDUCATION
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Chapter 33.4, Problem 2QTC
Summary Introduction
To analyze:
The ways one can better educate people about scientific information on male choice and the dangers of the eating disorder.
Introduction:
Eating disorder is one of the most common disorders of the modern world. Though present before, the numbers have increased drastically now. In the US alone around 30 million people suffer from some type of eating disorder. Both physical and psychological factors contribute to it. Some common types of eating disorders are anorexia and bulimia.
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You are studying the mating patterns of a group of elephant seals. In the group, you believe that the five males will get equal access to the 100 females during mating season.
If the Chi-square calculated value for this example is 2.6, what can you say about the results?
Group of answer choices
Some male seals mate with significantly more females while other male seals mate with fewer females.
The null hypothesis is rejected
There is no difference in the number of mates per male seal.
The p-value is less than 0.05
Intrasexual selection involves competition among one sex (typically males) for mating access to the other sex. Intersexual selection involves mate choice in which individuals from one sex (typically females) choose their mates from among individuals of the other sex. Imagine a group of males that is engaged in agonistic behavior, from which Male A emerges triumphant. Now imagine a female that is assessing all of the males that were involved in the fights, and chooses Male A. Explain why this situation shows how intrasexual and intersexual selection pressures are likely both at play in the trait selection.
In a savanna ecosystem, scientists investigate a species of antelope. Male antelopes display elaborate horns, which are used in ritualized combat during the mating season. Females are observed to choose mates with larger and more symmetrical horns. Which hypothesis suggests that the preference for males with larger and more symmetrical horns is based on the direct correlation between horn size and the male's overall physical condition?
Group of answer choices
Runaway sexual selection
Good health hypothesis
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Chapter 33 Solutions
Inquiry into Life
Ch. 33.1 - Understand what is meant by the term nurture...Ch. 33.1 - Prob. 2LOCh. 33.1 - Prob. 1QTCCh. 33.1 - Prob. 2QTCCh. 33.1 - Prob. 1CYPCh. 33.1 - Prob. 2CYPCh. 33.2 - Prob. 1LOCh. 33.2 - Prob. 2LOCh. 33.2 - Prob. 1CYPCh. 33.2 - Prob. 2CYP
Ch. 33.3 - Prob. 1LOCh. 33.3 - Prob. 2LOCh. 33.3 - Prob. 1QTCCh. 33.3 - Prob. 2QTCCh. 33.3 - If it can be shown that animals have emotions,...Ch. 33.3 - Prob. 1CYPCh. 33.3 - Prob. 2CYPCh. 33.3 - Prob. 3CYPCh. 33.4 - Prob. 1LOCh. 33.4 - Explain why females should be choosier than males...Ch. 33.4 - Prob. 3LOCh. 33.4 - Prob. 1QTCCh. 33.4 - Prob. 2QTCCh. 33.4 - Prob. 3QTCCh. 33.4 - Explain how territoriality is related to foraging...Ch. 33.4 - Compare and contrast reproductive strategies and...Ch. 33.4 - Prob. 3CYPCh. 33 - Prob. S1.1BYBCh. 33 - Prob. S23.3BYBCh. 33 - Prob. S27.3BYBCh. 33 - Prob. 1ACh. 33 - Prob. 2ACh. 33 - Prob. 3ACh. 33 - Prob. 4ACh. 33 - Prob. 5ACh. 33 - Prob. 6ACh. 33 - Prob. 7ACh. 33 - For questions 6-9. match the type of communication...Ch. 33 - Prob. 9ACh. 33 - Prob. 10ACh. 33 - Prob. 11ACh. 33 - Prob. 12ACh. 33 - You are studying two populations of rats—one in...Ch. 33 - Prob. 2TC
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