Campbell Biology in Focus, Books a la Carte Edition; Modified Mastering Biology with Pearson eText - ValuePack Access Card - for Campbell Biology in Focus (2nd Edition)
2nd Edition
ISBN: 9780134433769
Author: Lisa A. Urry, Michael L. Cain, Steven A. Wasserman
Publisher: PEARSON
expand_more
expand_more
format_list_bulleted
Concept explainers
Videos
Textbook Question
Chapter 43.1, Problem 3CC
WHAT IF? Imagine two populations of a fish species, one in the Mediterranean Sea and one in the Caribbean Sea. Now imagine two scenarios: (1) The populations breed separately, and (2) adults of both populations migrate yearly to the North Atlantic to interbreed. Which scenario would result in a greater loss of genetic diversity if the Mediterranean population were harvested to extinction? Explain your answer.
Expert Solution & Answer
Want to see the full answer?
Check out a sample textbook solution
Students have asked these similar questions
WHAT IF? Suppose two bird species live in a forestand are not known to interbreed. One species feeds andmates in the treetops and the other on the ground. Butin captivity, the birds can interbreed and produce viable,fertile offspring. What type of reproductive barrier mostlikely keeps these species separate in nature? Explain.
WHAT IF? Consider two species that diverged whilegeographically separated but resumed contact beforereproductive isolation was complete. Predict the outcome over time if the two species mated indiscriminately and (a) hybrid offspring survived and reproducedmore poorly than offspring from intraspecific matingsor (b) hybrid offspring survived and reproduced as wellas offspring from intraspecific matings.
WHAT IF? In the deserts of New Mexico, the soils aremostly sandy, with occasional regions of black rockderived from lava flows that occurred about 1,000 yearsago. Mice are found in both sandy and rocky areas, andowls are known predators. What might you expect aboutcoat color in these two mouse populations? Explain. Howwould you use this ecosystem to further test the camouflage hypothesis?
Chapter 43 Solutions
Campbell Biology in Focus, Books a la Carte Edition; Modified Mastering Biology with Pearson eText - ValuePack Access Card - for Campbell Biology in Focus (2nd Edition)
Ch. 43.1 - Prob. 1CCCh. 43.1 - Prob. 2CCCh. 43.1 - WHAT IF? Imagine two populations of a fish...Ch. 43.2 - How does the reduced genetic diversity of small...Ch. 43.2 - Prob. 2CCCh. 43.2 - WHAT IF? In 2005, at least ten grizzly bears in...Ch. 43.3 - Prob. 1CCCh. 43.3 - Prob. 2CCCh. 43.3 - Prob. 3CCCh. 43.4 - How can the addition of excess mineral nutrients...
Ch. 43.4 - MAKE CONNECTIONS There are vast stores of organic...Ch. 43.5 - Prob. 1CCCh. 43.5 - Prob. 2CCCh. 43.6 - Prob. 1CCCh. 43.6 - Prob. 2CCCh. 43.6 - WHAT IF? Suppose a new fishery is discovered, and...Ch. 43 - One characteristic that distinguishes a population...Ch. 43 - Prob. 2TYUCh. 43 - Prob. 3TYUCh. 43 - Prob. 4TYUCh. 43 - Prob. 5TYUCh. 43 - Prob. 6TYUCh. 43 - DRAW IT (a) Estimate the average CO2 concentration...Ch. 43 - Prob. 8TYUCh. 43 - FOCUS ON EVOLUTION The fossil record indicates...Ch. 43 - Prob. 10TYUCh. 43 - SYNTHESIZE YOUR KNOWLEDGE Big cats, such as the...
Additional Science Textbook Solutions
Find more solutions based on key concepts
To test your knowledge, discuss the following topics with a study partner or in writing ideally from memory. Th...
Human Anatomy
2. Why is it that the range of resting blood pressures of humans is best represented by a bell-shaped curve co...
Human Biology: Concepts and Current Issues
Jellyfish Lake, located on the Pacific island of Palau, is home to millions of jellyfish. Many years ago, sea l...
BIOLOGY:THE ESSENTIALS (LL) W/CONNECT
CAUTION How can evolutionary fitness be estimated? a. Document how long individuals survive. b. Count the numbe...
Biological Science (6th Edition)
1. The correct sequence of levels forming the structural hierarchy is
A. (a) organ, organ system, cellular, che...
Human Anatomy & Physiology (Marieb, Human Anatomy & Physiology) Standalone Book
Knowledge Booster
Learn more about
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
- WHAT IF? Based on MacArthur and Wilson’s islandequilibrium model, how would you expect the richness ofbirds on islands to compare with the richness of snakesand lizards? Explain.arrow_forwardMAKE CONNECTIONS Explain how natural selection could increase the resemblance of a harmlessspecies to a distantly related harmful species. In addition to selection, what else could account for a harmlessspecies resembling a closely related harmful species? (See Concept 22.2.)arrow_forwardMAKE CONNECTIONS Commercial fisheries targetolder, larger cod fish, causing cod that reproduce at ayounger age and smaller size to be favored by naturalselection. Younger, smaller cod have fewer offspring thando older, larger cod. Predict how evolution in responseto fishing would affect the ability of a cod populationto recover from overfishing. What other reciprocal ecoevolutionary effects might occur? (See Concept 23.3.)arrow_forward
- MAke ConneCtIonS Suppose that a sudden changein environmental conditions caused a substantial dropin a population’s carrying capacity. Predict how naturalselection and genetic drift might affect this population.(See Concept 23.3.)arrow_forwardWHAT IF? Suppose gene A is orthologous in species 1and species 2, and gene B is paralogous to gene A inspecies 1. Suggest a sequence of two evolutionary eventsthat could result in the following: Gene A differs considerably between species, yet gene A and gene B show littledivergence from each other.arrow_forwardThe Tibetans and Han Chinese share several genetic traits and DNA. However, the EPAS1 gene, which increases the ability of red blood cells to carry oxygen even in low oxygen environments, is only commonly found in the Tibetan population that live in higher elevations. Explain why this gene is only common in Tibetan populations from the perspective of competitive advantage and natural selection. Write your answer in three to five sentencesarrow_forward
- WHAT IF? Mice that experience stress such as a foodshortage will sometimes abandon their young. Explainhow this behavior might have evolved in the context ofreproductive trade-offs and life history.arrow_forwardWHAT IF? Suppose that two species, A and B, havesimilar appearances but very divergent gene sequences,while species B and C have very different appearancesbut similar gene sequences. Which pair of species is morelikely to be closely related: A and B or B and C? Explain.arrow_forwardTry to outline a scenario explaining the evolution of the three species shown in panel g. Use migration, mutation, genetic drift, selection, reproductive isolation, gene flow, extinction, and many generations in your scenario. Based on your scenario, what are the components that are necessary in a population in order for it to split or diverge into two new daughter species from a single ancestor (the parent species)?arrow_forward
- WHAT IF? Suppose you were studying a species thathas a population cycle of about ten years. How longwould you need to study the species to determine if itspopulation size were declining? Explain.arrow_forwardThe Tibetans and Han Chinese share several genetic traits and DNA. However the EPAS1 gene which increases the ability of red blood cells carry oxygen even in low environments, is only commonly found in the Tibetan population that live in higher elevations. Explain why this gene is commonly in Tibetan populations from the perspective of competitive advantage and natural selection. Write your answer in 3-5 sentencesarrow_forwardAs a genetically homogeneous species, elephant seals have a diminished capacity to evolve in response to environmental changes that may occur in the future—the entire population will be affected, to about the same degree, by any adverse changes. Do you think that elephant seals, regardless of their abundance, should be considered potentially endangered for the foreseeable future? Why or why not?arrow_forward
arrow_back_ios
SEE MORE QUESTIONS
arrow_forward_ios
Recommended textbooks for you
Biology: The Dynamic Science (MindTap Course List)BiologyISBN:9781305389892Author:Peter J. Russell, Paul E. Hertz, Beverly McMillanPublisher:Cengage Learning
Biology: The Dynamic Science (MindTap Course List)
Biology
ISBN:9781305389892
Author:Peter J. Russell, Paul E. Hertz, Beverly McMillan
Publisher:Cengage Learning
Mendelian Genetics and Punnett Squares; Author: Professor Dave Explains;https://www.youtube.com/watch?v=3f_eisNPpnc;License: Standard YouTube License, CC-BY
The Evolution of Populations: Natural Selection, Genetic Drift, and Gene Flow; Author: Professor Dave Explains;https://www.youtube.com/watch?v=SRWXEMlI0_U;License: Standard YouTube License, CC-BY