Investigating Biology Laboratory Manual (9th Edition)
9th Edition
ISBN: 9780134473468
Author: Lisa A. Urry, Michael L. Cain, Steven A. Wasserman, Peter V. Minorsky, Jane B. Reece, Judith Giles Morgan, M. Eloise Brown Carter
Publisher: PEARSON
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Chapter 54.1, Problem 3CC
MAKE CONNECTIONS Ø Figure 24.14 illustrates how a hybrid zone can change over time. Imagine that two finch species colonize a new island and are capable of hybridizing (mating and producing viable offspring). The island contains two plant species, one with large seeds and one with small seeds, growing in isolated habitats. If the two finch species specialize in eating different plant species, would reproductive barriers be reinforced, weakened, or unchanged in this hybrid zone? Explain.
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MAKE 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.)
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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.)
Chapter 54 Solutions
Investigating Biology Laboratory Manual (9th Edition)
Ch. 54.1 - Explain how competition, predation, and mutualism...Ch. 54.1 - According to the principle of competitive...Ch. 54.1 - MAKE CONNECTIONS Figure 24.14 illustrates how a...Ch. 54.2 - What two components contribute to species...Ch. 54.2 - How is a food chain different from a food web?Ch. 54.2 - Prob. 3CCCh. 54.2 - MAKE CONNECTIONS Rising atmospheric CO2, levels...Ch. 54.3 - Why do high and low levels of disturbance usually...Ch. 54.3 - Prob. 2CCCh. 54.3 - WHAT IF? Most prairies experience regular fires,...
Ch. 54.4 - Describe two hypotheses that explain why species...Ch. 54.4 - Prob. 2CCCh. 54.4 - WHAT IF? Based on MacArthur and Wilson's island...Ch. 54.5 - What are pathogens?Ch. 54.5 - WHAT IF? Rabies, a viral disease in mammals, is...Ch. 54 - Interspecific interactions affect the survival and...Ch. 54 - Based on indexes such as Shannon diversity, is a...Ch. 54 - Is the disturbance pictured in figure 54.25 more...Ch. 54 - How have periods of glaciation influenced...Ch. 54 - Prob. 54.5CRCh. 54 - Prob. 1TYUCh. 54 - The principle of competitive exclusion states that...Ch. 54 - Based on the intermediate disturbance hypothesis,...Ch. 54 - According to the island equilibrium model, species...Ch. 54 - Prob. 5TYUCh. 54 - Prob. 6TYUCh. 54 - Prob. 7TYUCh. 54 - The most plausible hypothesis to explain why...Ch. 54 - Community 1 contains 100 individuals distributed...Ch. 54 - Prob. 10TYUCh. 54 - EVOLUTION CONNECTION Explain why adaptations of...Ch. 54 - Prob. 12TYUCh. 54 - WRITE ABOUT A THEME: INTERACTIONS In Batesian...Ch. 54 - Prob. 14TYU
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- Figure 18.22 If two species eat a different diet but one of the food sources is eliminated and both species are forced to eat the same foods, what change in the hybrid zone is most likely to occur?arrow_forwardWHAT 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.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
- EVOLUTION LINK Examine Figure 20-2c and predict which date is likeliest for researchers to have collected wood frogs and leopard frogs and interbred them in the lab: March 10, April 1, or April 15. Explain your answer. (c) Graph of peak mating activity in wood and leopard frogs. In nature, wood and leopard frogs do not interbreed.arrow_forwardPlease provide abd explain four example of hybrid zone in animals . How large is the area of hybridization. What prezygotic isolating mechanism prevent the species from interbreeding outside the hybrid zone. is the frequency of hybrid matings increasing or decreasing through time.arrow_forwardPlease Help! Q1) Butterflies in Africa (species 1) pollinate just one species of flower with a short corolla reducing the variation in the length of the tongue of its pollinators. Butterflies in Europe (species 2) have variable lengths as they pollinate several different species of flowers. What is the mechanism shaping the length of the tongue in species 1?______ Q2) A variation on what morphological trait made the difference between life and death among all surviving finches in the draught of 1977? (one-word answer)arrow_forward
- MAKE CONNECTIONS Balancing selection can maintain variation at a locus (see Concept 23.4). Based on theforaging experiments described in this chapter, devise asimple hypothesis to explain the presence of both for Rand forsalleles in natural fly populationsarrow_forwardEVOLUTION CONNECTION Explain why adaptations ofparticular organisms to interspecific competition may notnecessarily represent instances of character displacement. Whatwould a researcher have to demonstrate about two competingspecies to make a convincing case for character displacement?arrow_forward4. Bird guides once listed the myrtle warbler and Audubon’swarbler as distinct species. Recently, these birds have beenclassified as eastern and western forms of a single species,the yellow-rumped warbler. Which of the following piecesof evidence, if true, would be cause for this reclassification?(A) The two forms interbreed often in nature, and theiroffspring survive and reproduce well.(B) The two forms live in similar habitats and have similar foodrequirements.(C) The two forms have many genes in common.(D) The two forms are very similar in appearance.arrow_forward
- WRITE ABOUT A THEME: INTERACTIONS In Batesianmimicry, a palatable species gains protection by mimickingan unpalatable one. Imagine that individuals of a palatable,brightly colored fly species are blown to three remote islands.The first island has no predators of that species; the second haspredators but no similarly colored, unpalatable species; and thethird has both predators and a similarly colored, unpalatablespecies. In a short essay (100–150 words), predict what mighthappen to the coloration of the palatable species on each islandthrough time if coloration is a genetically controlled trait.Explain your predictionsarrow_forwardHow would you predict an evolutionary shift from horizontal to vertical transmission of a symbiont in a mutualism would affect the following: 1) partner dependence, 2) partner fitness conflict, and 3) partner genomes. Clearly explain the logic behind your predictions How would you predict an evolutionary shift from horizontal to vertical transmission of a symbiont in a mutualism would affect the following: 1) partner dependence, 2) partner fitness conflict, and 3) partner genomes. Clearly explain the logic behind your predictionsarrow_forwardChoose True for yes and False for no, for each of the statements 1) The distribution of the two species-C populations cannot be explained by two totally independent dispersal events by the common ancestor species of A and B. True or false 2) B must share a more recent common ancestor with C1 than it does with C2. True or falsearrow_forward
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