BIOLOGY
12th Edition
ISBN: 9781260169614
Author: Raven
Publisher: RENT MCG
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Chapter 20.5, Problem 1LO
Summary Introduction
To determine: Theparental investment and prediction it makes about mate choice.
Introduction: Selection pressure does lead to evolution, but it is not the requirement for evolution to occur. The members that are fit to survive in the changing condition will evolve into a more efficient and improved species.
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Chapter 20 Solutions
BIOLOGY
Ch. 20.1 - Define evolution and population genetics.Ch. 20.1 - Prob. 2LOCh. 20.2 - Explain the HardyWeinberg principle.Ch. 20.2 - Describe the characteristics of a population that...Ch. 20.2 - Prob. 3LOCh. 20.3 - Define the five processes that can cause...Ch. 20.3 - Prob. 2LOCh. 20.4 - Prob. 1LOCh. 20.4 - Prob. 2LOCh. 20.4 - Demonstrate how the success of different...
Ch. 20.5 - Prob. 1LOCh. 20.5 - Prob. 2LOCh. 20.5 - Prob. 3LOCh. 20.6 - Define frequency-dependent selection, oscillating...Ch. 20.6 - Prob. 2LOCh. 20.7 - Define and contrast disruptive, directional, and...Ch. 20.7 - Prob. 2LOCh. 20.8 - Explain how experiments can be used to test...Ch. 20.9 - Prob. 1LOCh. 20.9 - Prob. 2LOCh. 20.10 - Prob. 2LOCh. 20 - If all white cats died, what proportion of the...Ch. 20 - Assuming that the values on the x-axis represent...Ch. 20 - Prob. 3DACh. 20 - Prob. 4DACh. 20 - Examine the index of copper tolerance on nonmine...Ch. 20 - Prob. 6DACh. 20 - Why are rare alleles particularly likely to be...Ch. 20 - Prob. 2IQCh. 20 - Prob. 3IQCh. 20 - Prob. 4IQCh. 20 - Prob. 5IQCh. 20 - Prob. 6IQCh. 20 - Prob. 7IQCh. 20 - Prob. 8IQCh. 20 - Prob. 9IQCh. 20 - Assortative mating a. affects genotype frequencies...Ch. 20 - When the environment changes from year to year and...Ch. 20 - Many factors can limit the ability of natural...Ch. 20 - Stabilizing selection differs from directional...Ch. 20 - Founder effects and bottlenecks are a. expected...Ch. 20 - Relative fitness a. refers to the survival rate of...Ch. 20 - For natural selection to result in evolutionary...Ch. 20 - Prob. 8UCh. 20 - In a population of red (dominant allele) or white...Ch. 20 - Genetic drift and natural selection can both lead...Ch. 20 - Prob. 3ACh. 20 - Prob. 4ACh. 20 - In Trinidadian guppies a combination of elegant...Ch. 20 - On large, black lava flows in the deserts of the...Ch. 20 - Based on a consideration of how strong artificial...
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- How can altruism be adaptive if it can result in fewer offspring for an individual?arrow_forwardResearch and find a K-selected species (other than humans), and explain the pressures and resources that impact this strategy. Also explain how your chosen organism works to combat pressures of selection, resource availability, and environmental stressors that impact successful offspring production.arrow_forwardWhy is long-term parental care not associated with having many offspring during a reproductive episode?arrow_forward
- Describe how courtship behavior drives sexual selection. Use the peacock as an example.arrow_forwardWhat are types of antagonistic interactions within populations? Choose All That Apply male-male competition for mates pair bonding between males and females competition for resources sexual selectionarrow_forwardCan Kin selection explain eusocialty?arrow_forward
- In a species of birds, males court females by dancing and subordinate males are seen to join a dominant male and help in his dancing displays, though the subordinate receives no mating opportunities. If the subordinate male DOES NOT inherit the dominant male's territory upon its death, how would you explain this cooperative behavior? O Altruism, because the subordinate is receiving direct benefits O Mutualism, because the subordinate is receiving direct benefits O Altruism, because the subordinate is receiving indirect benefits O Mutualism, because the subordinate is receiving indirect benefitsarrow_forwardWhich phase is characterized by social referencing? O Phase 2: Early Attachments Phase 1: Pre-Attachment Phase 4: Reciprocal Relationships Q 12 of 15 Phase 3: Attachmentsarrow_forwardDistinguish between proximate and ultimate causes of behavior and apply theconcepts of ultimate cause and cost–benefit analysis to decide whether a particularbehavior is adaptive.arrow_forward
- Give an example of an altruistic behavior and explain how such be-havior conflicts with Darwin’s expectation that animals should act selfishly to produce as many offspring as possible.arrow_forwardTwo kinds of simple learning are habituation and imprinting. Distin-guish these two types of learning, and offer an example of each.arrow_forwardWhen animals engage in , they oftenperform displays that make them look as large anddangerous as possible.a. courtshipb. altruismc. kin selectiond. aggressionarrow_forward
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