Campbell Biology Plus Mastering Biology with Pearson eText - Access Card Package (11th Edition)
11th Edition
ISBN: 9780134082318
Author: Lisa A. Urry, Michael L. Cain, Steven A. Wasserman, Peter V. Minorsky, Jane B. Reece
Publisher: PEARSON
expand_more
expand_more
format_list_bulleted
Concept explainers
Videos
Textbook Question
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.
Expert Solution & Answer
Want to see the full answer?
Check out a sample textbook solution
Students have asked these similar questions
Choose 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 false
Which of these is an example of a key innovation?
A caterpillar of a butterfly species provides honey to an ant colony in order to receive protection and care.
A founding population of honeycreepers evolves beaks capable of cracking the seed of a tree species in their new habitat.
A new flower color morph arises in a plant population, but an associated pollinator does not distinguish flowers by color.
Co-occurring diploid species of wheat and goatgrass hybridize to form a viable tetraploid offspring that can no longer breed with its parents.
Decide whether each of the following scenarios would lead to prezygotic or postzygotic reproductive
isolation:
a) Dragonflies from two different populations have genitals that do not match, so they can't mate
successfully [Select ]
b) Two different species of fish have very different courtship displays, but they can mate and produce a
non-fertile offspring [Select]
c) One species of plant flowers in the winter, while another flowers in early spring
[ Select ]
d) The gametes of two tree species can fuse, but a zygote does not form
[ Select ]
e) A mountain range separates two populations of snakes
I Select]
Chapter 54 Solutions
Campbell Biology Plus Mastering Biology with Pearson eText - Access Card Package (11th 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
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
- Hello! I need help. Thanks! I'm pretty sure there's more than 1 correct answer.arrow_forwardA population of interbreeding birds has been split by a geological event after which the isolated part of the population started to evolve into an incipient species with different mating rituals. Due to a recent environmental change the two populations are now able to potentially mate again in what is called a hybrid zone. Mating does take place every now and then but the hybrid offspring appear less able to survive. As a consequence, mating rituals start to diverge even further. We call this process of continued divergence? O Fusion O Behavioral isolation Reinforcement O Postzygotic isolation O Stabilityarrow_forwardPlease Help mearrow_forward
- 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 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_forwardThe biological species concept is based on the assumption that species are reproductively isolated and do not share genes. And yet a number of organisms that are considered different species hybridize (mate and exchange genes). Hybridization between different species is more common in plants than in animals. Propose some possible reasons for this difference.arrow_forwardImagine there's a population of Cichlid fish living in a lake in East Africa. Some of the fish have a genetic predisposition to feed from the deeper parts of the lake and also enjoy breeding down there, while the other fish have a genetic predisposition to feed near the surface and enjoy breeding up there. Eventually, individuals from the upper parts of the lake stop breeding with individuals from the bottom because their hybrid offspring have poor fitness (and can't competitively feed at the top or bottom of the lake). These two sub-populations will likely experience and possibly evolve into two species. Genetic Drift Post-zygotic Isolation Directional Selection O Disruptive Selectionarrow_forward
- please helparrow_forwardthe choices are homogenization and speciation for all threearrow_forwardThe approximately 600 species of cichlids in East Africa’s Lake Victoria have largely resulted from sympatric speciation. The closely related cichlids species P. pundamilia and P. nyererei are thought to have arisen by sexual selection. Mate choice by females strongly favors males of their own species that have different body colors. In recent years, pollution has caused the water of Lake Victoria to become turbid in some areas. Hybrids of P. pundamilia and P. nyererei were produced and the gene pools of the two species have started to fuse, creating a new hybrid species. In this process, what are the conditions that led to the fusion of P. pundamilia and P. nyererei? A. Only the prezygotic reproductive barrier is not complete for the two species. B. Only the postzygotic reproductive barrier is not complete for the two species. C. Both the prezygotic and the postzygotic reproductive barriers are complete for the two species. D. Both the prezygotic and the postzygotic reproductive…arrow_forward
- A small number of lizards from a mainland population have been deposited on four isolated islands because of the effects of a rare strong storm. Which of the following best predicts the outcome of these lizards reproducing for many generations on the islands? * The isolation prevents gene flow; thus, the lizards on different islands experience prezygotic isolation. The different species that currently exist are the result of hybridization between lizards from different islands. Speciation results from bottleneck events that happened before the ancestral species reached the islands. Courtship rituals specific to each island lizard species prevent the lizards from interbreeding.arrow_forwardImagine there's a species of flower that blooms in early April. Some seeds are blown over a mountain and the offspring of those seeds start a new population on the other side. After several million years the mountain erodes and the two flower populations are reintroduced to each other. The population that lived on the far side of the mountain flowers in early May, while the other still flowers in early April. The two populations never hybridize, and become their own species. This is an example of: Gametic Barrier Temporal Isolation O Habitat Isolation O Behavioral Isolation 1.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
arrow_back_ios
SEE MORE QUESTIONS
arrow_forward_ios
Recommended textbooks for you
Biology 2eBiologyISBN:9781947172517Author:Matthew Douglas, Jung Choi, Mary Ann ClarkPublisher:OpenStax
Biology (MindTap Course List)BiologyISBN:9781337392938Author:Eldra Solomon, Charles Martin, Diana W. Martin, Linda R. BergPublisher:Cengage Learning
Biology 2e
Biology
ISBN:9781947172517
Author:Matthew Douglas, Jung Choi, Mary Ann Clark
Publisher:OpenStax
Biology (MindTap Course List)
Biology
ISBN:9781337392938
Author:Eldra Solomon, Charles Martin, Diana W. Martin, Linda R. Berg
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