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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- Describe how courtship behavior drives sexual selection. Use the peacock as an example.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_forwardWhen animals engage in , they oftenperform displays that make them look as large anddangerous as possible.a. courtshipb. altruismc. kin selectiond. aggressionarrow_forward
- The brightness of color in male Blue-footed boobies correlates with higher mating success. Why is the color of the feet considered an ‘honest signal’?arrow_forwardDescribe some ways that predators can take advantage of preycommunication systems.arrow_forwardHerd behavior benefits wildebeests by: helping individuals find mates. decreasing the chance of spreading disease. allowing altruistic behavior. increasing the number of resources available.arrow_forward
- Explain why dispersal behaviour shown amongst majority of species improves reproductive success.arrow_forwardEnumerate and explain what are the factors that affects/influences pro-environmental behavior.arrow_forward. All of the following are benefits obtained through territorialityexcepta. access to mates.b. access to more food.c. access to more places to hide.d. access to more predators.e. increased space to raise more offspring.arrow_forward
- Which of the following is associated with long-term parental care? a. few offspring b. many offspring c. semelparity d. fecundityarrow_forwardMale cockroaches use their sense of smell to find food but also to detect receptive females. Discuss the anatomical, neural and molecular mechanisms that help males recognise mates over large distances and contrast them with the mechanisms that underpin the recognition of food by its smell.arrow_forwardDiscuss why song would be a barrier to mating with another species and having the incorrect song might change an individuals overall species fitnessarrow_forward
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