Biology
11th Edition
ISBN: 9781259188138
Author: Peter H Raven, George B Johnson Professor, Kenneth A. Mason Dr. Ph.D., Jonathan Losos Dr., Susan Singer
Publisher: McGraw-Hill Education
expand_more
expand_more
format_list_bulleted
Concept explainers
Videos
Textbook Question
Chapter 22, Problem 8U
Adaptive radiation
a. is the result of enriched uranium used in power plants.
b. is the evolution of closely related species adapted to use different parts of the environment.
c. results from genetic drift.
d. is the outcome of stabilizing selection favoring the maintenance of adaptive traits.
Expert Solution & Answer
Want to see the full answer?
Check out a sample textbook solution
Students have asked these similar questions
Adaptive radiations can be a direct consequence of three of the following four factors. Select the factor that is NOT a direct consequence of adaptive radiation.
Select one:
a. Genetic drift
b. Vacant ecological niches (niches are environment "space" where a particular organism has resources required to survive and reproduce)
c. New evolutionary innovations
d. Colonization of a new region that contains suitable habitat and few competitor species
Which of the following statements is inaccurate?
Multiple choice (one answer is correct)
a.The genetic variation that occurs in a population from mutation is non-random
b.Natural selection is the only mechanism that consistently causes adaptive evolution
c.Evidence demonstrates that whales evolved from land-dwelling organisms
d.Natural selection acts on populations
The three beetle species live in the same ecosystem, and they likely evolved from the ancestral species that colonized the region. Which statement best explains how descent with modification influenced speciation in these beetles?
A. The ancestral species carried neutral gene mutations that spontaneously caused speciation when they colonized the region.
B. The ancestral species randomly diverged into three species before colonization and then colonized the regions that best suited their new adaptations.
C. After colonization, small groups separated from the rest of the ancestral species and developed different adaptations that helped them survive and reproduce.
D. After colonization, the large group interbred until they developed enough neutral genetic mutations for speciation to occur.
Chapter 22 Solutions
Biology
Ch. 22 - Prezygotic isolating mechanisms include all of the...Ch. 22 - Reproductive isolation is a. a result of...Ch. 22 - Problems with the biological species concept...Ch. 22 - Prob. 4UCh. 22 - Prob. 5UCh. 22 - Prezygotic isolation a. always involves mechanisms...Ch. 22 - Speciation by allopolyploidy a. takes a long time....Ch. 22 - Adaptive radiation a. is the result of enriched...Ch. 22 - Prob. 9UCh. 22 - Character displacement a. arises through...
Ch. 22 - Prob. 11UCh. 22 - If reinforcement is weak and hybrids are not...Ch. 22 - Natural selection can a. enhance the probability...Ch. 22 - Hybridization between incompletely isolated...Ch. 22 - Natural selection can lead to speciation a. by...Ch. 22 - Natural selection can lead to the evolution of...Ch. 22 - If there is no universally accepted definition of...Ch. 22 - Refer to figure 22 6 In Texas. Drummond s phlox is...Ch. 22 - Refer to figure 22.16. Geospiza fuliginosa and...
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
- Mutation (a) leads to adaptive evolutionary change (b) adds to the genetic variation of a population (c) is the result of genetic drift (d) almost always benefits the organism (e) a and barrow_forwardEvolution that results because certain genotypes have a higher reproductive success is based on a. genetic variation. c. genetic drift. b. natural selection. d. both a and b.arrow_forwardAdaptive radiation is common following a period of mass extinction, probably because (a) the survivors of a mass extinction are remarkably well adapted to their environment (b) the unchanging environment following a mass extinction drives the evolutionary process (c) many adaptive zones are empty(d) many ecological niches are filled (e) the environment induces changes in the timing of development for many speciesarrow_forward
- The Galapagos archipelago consists of volcanic islands that formed within the last 5 million years. Darwin wrote of the finches on these islands, "...from an original paucity of birds in this archipelago, one species has been taken and modified for different ends." The Galapagos finches are an example of adaptive radiation driven by a. behavioural innovation. b. morphological innovation. c. ecological opportunity. d. physiological innovation.arrow_forwardAn adaptive radiation is________. a. a burst of speciation b. a healthy level of UV radiation c. a hypothesized cause of a mass extinction d. evidence of an asteroid impactarrow_forwardResearchers have found fossils of Eocene horse species in Colorado. Deeper deposits contain smaller species, and more recent deposits contain larger species. How does this observation support the theory of evolution? A. It provides evidence that species change over time. B. It does not support the theory of evolution. C. It shows that all species are related to each other. D. It proves that environments have changed over time. E. It suggests that species are unchanging and of recent origin.arrow_forward
- In marine iguanas males are much larger than females and fight with one another for access to areas that are preferred by females. What type of evolutionary force is causing the increase in male size? Group of answer choices A. disruptive (natural) selection B. intrasexual selection C. disruptive (natural) selection D. stabilizing (natural) selection E. intersexual selectionarrow_forwardSpecies that are more vulnerable to certain risk factors are more likely than others to become extinct. For example, species with a unique lineage, such as the giant panda, are likely to be at severe risk of extinction.a. Should our limited resources for species protection be focused on species that are at the highest risk of extinction?b. Do you support the idea that high-risk species may be less successful products of evolution and should not receive extraordinary protection?arrow_forwardThe _________________ model proposes that modern humans are the most recent morphological form in a species that has been around for nearly 2 million years. a. Multiregional Evolution (MRE) b. Multiple Dispersal (MD) c. Recent African Origin (RAO) d. Recent African Origin-HYbrid(RAO-H)arrow_forward
- After the mass extinction that occurred 65 million years ago, mammals rapidly diversified to occupy habitats that were previously unavailable to them. What concept does this illustrate? A. Adaptive radiation B. Cretaceous selection C. Reproductive isolationD. Heterozygote advantagearrow_forwardWhich term can most accurately be used to describe evolutionary change that leads to speciation? A. microevolution b. macroevolution c. sexual selection d. natural selection e. reproductive isolationarrow_forwardAs a mechanism of evolution, natural selection can be most closely equated with a. random mating. b. genetic drift. c. unequal reproductive success. d. gene flow.arrow_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
Animal Adaptations for Kids, Learn about physical, life cycle, and behavioral adaptations of animals; Author: Learn Bright;https://www.youtube.com/watch?v=m2MibjJgyjs;License: Standard youtube license