Biology (MindTap Course List)
11th Edition
ISBN: 9781337392938
Author: Eldra Solomon, Charles Martin, Diana W. Martin, Linda R. Berg
Publisher: Cengage Learning
expand_more
expand_more
format_list_bulleted
Concept explainers
Videos
Textbook Question
Chapter 54, Problem 16TYU
EVOLUTION LINK Competition is an important part of Darwin’s scientific theory of evolution by natural selection, and the evolution of features that reduce competition increases a population’s overall fitness. Relate this idea to character displacement and
Expert Solution & Answer
Want to see the full answer?
Check out a sample textbook solution
Students have asked these similar questions
The Galapagos finches' response to changing environmental conditions.
Research Notes: (focus on how and why the population changed over time)▪Step by step explanation of how a population can change over time, using your example▪Description of inherited variation within the population▪Explanation of why some individuals isbetter able to survive and produce offspring.▪A description of the adaptation that is being favored by natural selection▪Data to support explanations
Darwin’s finches have different beaks in terms of size and shape to be able to eat different food sources like insects, nectar, and seeds. Cactus finches have longer, more pointed beaks to probe cactus flowers compared to their relatives, the ground finches.
If a plant disease killed a large portion of the cacti on the Galapagos islands, what would the future populations of finches look like in terms of beak size and shape? Use your knowledge of natural selection to determine which option is most likely.
Ground finches would survive and pass on their shorter and wider beaks, so there would be a higher proportion of finches in future generations that have short and wide beaks.
Ground finches would survive and pass on their beaks, but they would mate with the remaining cactus finches, creating a new hybrid that is somewhere between short versus long and narrow versus wide.
Cactus finches would compete for food with ground finches and exhibit resource partitioning, so the beaks…
The graph in Figure 3 represents the beak sizes of the offspring of the birds that survived the drought of1977. (The survivors were represented by the black bars in Figure 2, and this graph shows the beak depth distribution of their offspring in 1978.)
Explain the observed change in beak characteristics using the following concepts in your answer: competition, survival of the fittest, inheritance.
Chapter 54 Solutions
Biology (MindTap Course List)
Ch. 54.1 - Define ecological niche and distinguish between an...Ch. 54.1 - Define competition and distinguish between...Ch. 54.1 - Summarize the concept of the competitive exclusion...Ch. 54.1 - Define predation and describe the effects of...Ch. 54.1 - Distinguish among mutualism, commensalism, and...Ch. 54.1 - How are acorns, gypsy moths, and Lyme disease...Ch. 54.1 - Why is an organisms realized niche usually...Ch. 54.1 - Which principle of community ecology is...Ch. 54.1 - Name the three kinds of symbiosis and give an...Ch. 54.2 - Prob. 6LO
Ch. 54.2 - Prob. 7LOCh. 54.2 - Prob. 1CCh. 54.2 - Prob. 2CCh. 54.3 - Summarize the main determinants of species...Ch. 54.3 - Prob. 9LOCh. 54.3 - Prob. 1CCh. 54.3 - Prob. 2CCh. 54.3 - Prob. 3CCh. 54.4 - Define succession and distinguish between primary...Ch. 54.4 - Prob. 11LOCh. 54.4 - Prob. 12LOCh. 54.4 - Prob. 1CCh. 54.4 - Prob. 2CCh. 54.4 - Prob. 3CCh. 54 - A symbiotic association in which organisms are...Ch. 54 - A species __________ is the totality of its...Ch. 54 - Prob. 3TYUCh. 54 - The tendency for two similar species to differ...Ch. 54 - Competition with other species helps determine an...Ch. 54 - Complete competitors cannot coexist is a statement...Ch. 54 - Prob. 7TYUCh. 54 - The _______________ signifies that species...Ch. 54 - An unpalatable species demonstrates its threat to...Ch. 54 - A limiting resource does all the following except...Ch. 54 - An ecologist studying several forest-dwelling,...Ch. 54 - Support for the individualistic model of community...Ch. 54 - Prob. 13TYUCh. 54 - Many plants that produce nodules for...Ch. 54 - EVOLUTION LINK The rough-skinned newt, which lives...Ch. 54 - EVOLUTION LINK Competition is an important part of...Ch. 54 - INTERPRET DATA Examine the top and middle graphs...Ch. 54 - SCIENCE, TECHNOLOGY, AND SOCIETY Describe the...
Additional Science Textbook Solutions
Find more solutions based on key concepts
Some people compare DNA to a blueprint stored in the office of a construction company. Explain how this analogy...
Biology: Concepts and Investigations
On what molecule does the anticodon appear? Explain the role of this molecule in protein synthesis.
Human Physiology: An Integrated Approach (7th Edition)
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
Figure 11.6 Label the features of the skin.
Laboratory Manual For Human Anatomy & Physiology
Define histology.
Fundamentals of Anatomy & Physiology Plus Mastering A&P with eText - Access Card Package (10th Edition) (New A&P Titles by Ric Martini and Judi Nath)
Why is it necessary to be in a pressurized cabin when flying at 30,000 feet?
Anatomy & Physiology
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
- Given your knowledge of how predators and resources can affect life history traits, hypothesize how the four combinations of high resources, low resources, predator presence, and predator absence would affect the size at maturity of a prey species.arrow_forwardDiscuss how movement and migration behaviors are a result of natural selectionarrow_forwardimagine that you have a population of monkeys the variety within the species allows for monkeys to be long tailed or tailless; carnivorous or herbivorous; and brown or blonde furred. Describe an example of an environmental change to happen to these monkeys that over many generations?arrow_forward
- Create a scenario in which red pandas undergoes a speciation event by the mechanism natural selection of climate changearrow_forwardBased on Darwin's ideas of descent with modification and natural selection, observation would best support the idea increased competition causes changes in a species ? A population of rattlesnake goes extinct as the water resources in their environment dry up during an extreme, prolonged drought A population of frogs develop greener skin after a hurricane blows away the white flowers the environment A population of artic foxes develop a brown fur color as warmer temperatures reduce the number of days of snowfall in the area A population deer show an increase in antler size over time, which allows them to obtain more mates during mating seasonarrow_forwardAccording to Darwin, why do certain traits become more common in a population over time? (Hint- consider why dome-shaped tortoises are found in Isabella Island but not in Hood Island)arrow_forward
- Talk in detail about congo lions (panthera Leo azandica) and include the following points: . the spatial distribution of that species • how the species is distributed globally • distribution of individuals within a population • discuss why this spatial pattern may have developed or evolvedarrow_forwardMany species of birds have elaborate mating rituals that include bird calls, nest construction, and courtship displays. A researcher is comparing two populations of birds with similar morphology that live in similar niches. Male birds in one population build a nest before attempting to court a female, while males in the other population build the nest in cooperation with the female. Is it likely the researcher will classify these birds as the same species?arrow_forwardIn one of the hypotheses that explain the extinction of the dinosaurs, the rapid climatic change produced an environmental situation with which these species could not cope. How important is the total amount of variation present in the population if the selective pressures suddenly change? Why?arrow_forward
- On large, black lava flows in the deserts of the southwestern United States, populations of many types of animals are composed primarily of dark individuals. By contrast, on small lava flows, populations often have a relatively high proportion of light-colored individuals. How can you explain this difference?arrow_forwardNatural and sexual selection both lead to evolution, but these processes can work against each other. Differentiate between these two forms of selection and give an example of a situation where natural selection reduces mate choice and sexual selection reduces survival.arrow_forwardworldwide, pest insects destroy a significant portion of food crops. for each new insecticide used, insecticides resistant insects appear and lead to the development of insecticide- resistant populations. all insecticide is a poison that kills insects describe the selective pressure ( driver of selection) in the example above and explain the reasoning for your choicearrow_forward
arrow_back_ios
SEE MORE QUESTIONS
arrow_forward_ios
Recommended textbooks for you
Biology (MindTap Course List)BiologyISBN:9781337392938Author:Eldra Solomon, Charles Martin, Diana W. Martin, Linda R. BergPublisher:Cengage Learning
Biology (MindTap Course List)
Biology
ISBN:9781337392938
Author:Eldra Solomon, Charles Martin, Diana W. Martin, Linda R. Berg
Publisher:Cengage Learning
GCSE Biology - Adaptations #79; Author: Cognito;https://www.youtube.com/watch?v=tC-u8xcZYSM;License: Standard Youtube License