EP CONNECT ONLINE ACCESS FOR BIOLOGY
20th Edition
ISBN: 9781260494655
Author: Raven
Publisher: MCG COURSE
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Chapter 53, Problem 11U
Summary Introduction
Introduction:
Altruism is an animal behavior that benefits other organism at its own cost. The altruism of an individual will be selected by nature as its sacrificing behavior will lead to an increase in the propagation of its own alleles through kin selection.
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. Hamilton suggests altruistic behaviors are favorable when
A. cost/benefit is greater than the coefficient of relationship
B. cost/benefit is less than the coefficient of relationship
C. benefit/cost is less than the coefficient of relationship
D. None of the above
.Hamilton's rule (where r is the degree of relatedness, B is the benefit to the
recipient, and C is the cost to the altruist) predicts that natural selection should favor
altruistic acts under certain circumstances. Which of the following circumstances are
unlikely to lead to selection favoring altruism?
A. B is small
B. C is large
C. r is small
D. All of the above
If the last slice of pizza is worth 4 to you and is worth 7 to your mother, then
according to Hamilton's rule
A. you should take the last slice of pizza.
B. you should give the last slice of pizza to your mother..
C. you should cut the last slice of pizza in half and take half for you and give half to your
mother..
D. None of the above, Hamilton's rule cannot be…
This hypothesis suggests that a resulting association of female preference and male display trait can lead to a positive feedback cycle of ever stronger preference and greater display trait.
A. Fisher-Zahavi process.
B. Fisher's runaway model.
C.Good genes process.
D.Bateman's principle.
Which of the following is the best description of sexual selection?
a.
Sexual selection is the differential reproductive success due to variation in acquiring immunity from mates.
b.
Sexual selection is the differential reproductive success due to variation in survival from social selection.
c.
Sexual selection is the differential reproductive success due to variation in acquiring mates or mating success.
d.
Sexual selection is the differential survival success due to variation in avoiding mates or mating success.
Chapter 53 Solutions
EP CONNECT ONLINE ACCESS FOR BIOLOGY
Ch. 53.1 - Prob. 1LOCh. 53.1 - Prob. 2LOCh. 53.1 - Prob. 3LOCh. 53.2 - Prob. 1LOCh. 53.2 - Prob. 2LOCh. 53.3 - Prob. 1LOCh. 53.3 - Prob. 2LOCh. 53.3 - Prob. 3LOCh. 53.4 - Prob. 1LOCh. 53.4 - Prob. 2LO
Ch. 53.4 - Prob. 3LOCh. 53.5 - Prob. 1LOCh. 53.5 - Prob. 2LOCh. 53.5 - Prob. 3LOCh. 53.6 - Prob. 1LOCh. 53.7 - Define migration.Ch. 53.7 - Prob. 2LOCh. 53.7 - Prob. 3LOCh. 53.8 - Prob. 1LOCh. 53.8 - Prob. 2LOCh. 53.8 - Prob. 3LOCh. 53.9 - Prob. 1LOCh. 53.9 - Prob. 2LOCh. 53.10 - Prob. 1LOCh. 53.10 - Prob. 2LOCh. 53.11 - Prob. 1LOCh. 53.11 - Prob. 2LOCh. 53.11 - Prob. 3LOCh. 53.12 - Prob. 1LOCh. 53.12 - Prob. 2LOCh. 53.12 - Prob. 3LOCh. 53.13 - Prob. 1LOCh. 53.13 - Prob. 2LOCh. 53.13 - Prob. 3LOCh. 53 - Prob. 1DACh. 53 - Prob. 2DACh. 53 - Prob. 3DACh. 53 - Prob. 4DACh. 53 - Prob. 5DACh. 53 - Prob. 1IQCh. 53 - Prob. 2IQCh. 53 - Prob. 3IQCh. 53 - What factors might be responsible for the slight...Ch. 53 - Prob. 1UCh. 53 - Prob. 2UCh. 53 - The study of song development in sparrows showed...Ch. 53 - Prob. 4UCh. 53 - Prob. 5UCh. 53 - Prob. 6UCh. 53 - Prob. 7UCh. 53 - Prob. 8UCh. 53 - In the haplodiploidy system of sex determination,...Ch. 53 - Prob. 10UCh. 53 - Prob. 11UCh. 53 - Prob. 1ACh. 53 - Refer to figure 54.25. Six pairs of birds were...Ch. 53 - Prob. 3ACh. 53 - Prob. 1SCh. 53 - Behavioral genetics has made great advances from...Ch. 53 - If a female bird chooses to live in the territory...
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Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, biology and related others by exploring similar questions and additional content below.Similar questions
- Using the concept of inclusive fitness (and kin selection), explain how altruistic behavior (e.g. where an individual protects for another, even at their own expense) can evolve by natural selection? Make sure to explain what inclusive fitness is. (remember the concentric circles on the slide)arrow_forwardYou document altruism in an animal species that you are studying: female zebras running at the back of the group, closest to the pursuing predator, as the group runs to escape a predator. Both kin selection and reciprocal altruism can explain this behavior. What piece of evidence would support the hypothesis that it's kin selection?arrow_forwardThe good genes model of sexual selection is a popular hypothesis for mate choice. What is an underlying flaw with the hypothesis that must be explained? Group of answer choices A. there is no evidence for mate choice in animals B. sexual selection will remove genetic variation for fitness C.animals are not capable of a sense of beauty D. different species have different traits that are important in mate choice E. all genes confer equal fitness in lab experimentsarrow_forward
- Which of the following is an example of a question about mechanism (not function)? A. What stimuli triggers a mother bird to feed her nestling? B. How does parental care benefit the mother's inclusive fitness? C. Why do some species have parental care but not others? D. Do mother birds get better at caring for their offspring over time?arrow_forwardDifferentiate Kin selection from altruism.arrow_forwardIntrasexual 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.arrow_forward
- Which of the following are reasons why parental investment can differ between the sexes? a. Production of different sex cells b. Differences in behavior c. Differences in migration d. Both a. and b. e. Both b. and c.arrow_forwardEarlier explanations of altruistic behavior as a form of group selec-tion have been supplanted by Hamilton’s hypothesis of kin selection. What distinguishes kin selection and how does it accord with the no-tion of inclusive fitness, the relative number of an individual’s alleles that pass to the next generation?arrow_forwardThe potential for social interactions among individuals should be maximized when individuals a. are randomly distributed in their environment. b. are uniformly distributed in their environment. c. have a clumped distribution in their environment. d. None of the choices is correct.arrow_forward
- Direct benefits derived by choosy females in mating include the following EXCEPT - A. Help in caring for young B. Nesting territories. C. Protection from injuries. D. Having more male offspring which be chosen as future mates.arrow_forwardThere are three chief ideas of the handicap principle: 1) Animals communicate with éach other throughn sigi must be honest, and 3) honest signals are expensive. Stotting behavior (up and down jumps gazelles exhibit when they spot a predator before the gazelle runs away) often results in the predator leaving before it attacks, presumably because the predator knows it won't easily catch that gazelle. This clearly is an example of the handicap principle based on the three ideas. True Falsearrow_forwardWhich of the following is NOT true of stabilising selection a. it occurs when inidivuals with extreme trait values have lower fitness than those with intermediate trait values. b. it keeps the mean close (or moves it closer) to the optimum value c. it can result from opposing directional selection, such as when early flowering makes flowers susceptible to herbivores, but late flowering reduces the availability of pollinators. d. it does not improve the fitness of the population to the environment. e. it decreases the range of variation in the populationarrow_forward
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