Biology: The Dynamic Science (MindTap Course List)
4th Edition
ISBN: 9781305389892
Author: Peter J. Russell, Paul E. Hertz, Beverly McMillan
Publisher: Cengage Learning
expand_more
expand_more
format_list_bulleted
Concept explainers
Videos
Textbook Question
Chapter 20, Problem 7TYK
Which of the following could be an example of microevolution?
a. a slight change in a bird population’s color due to a smallgenetic change in the population
b. large differences between fossils found near the groundsurface and those found in deep rock layers
c. the sudden disappearance of an entire genus
d. the direct evolutionary link between living primates andhumans
e. a flood that drowns all members of a population
Expert Solution & Answer
Trending nowThis is a popular solution!
Learn your wayIncludes step-by-step video
schedule06:05
Students have asked these similar questions
Assume you are studying the fossil record of a certain lineage of sharks. You find that sharks in this lineage will maintain the same morphology for long periods of time and only rapidly change their morphology during a speciation event. The evidence you uncover is supportive of which of the following theories?
a.
Punctuated Equilibrium
b.
Gradualism
c.
Start and Stasis
d.
Increased Net Tempo
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 advantage
The _________________ 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)
Chapter 20 Solutions
Biology: The Dynamic Science (MindTap Course List)
Ch. 20.1 - Why did the existence of vestigial structures make...Ch. 20.1 - What were Lamarcks contributions to an...Ch. 20.1 - How do the concepts of gradualism and...Ch. 20.2 - What observations that Darwin made on his...Ch. 20.2 - How did Darwins understanding of artificial...Ch. 20.2 - What were the four great intellectual triumphs of...Ch. 20.3 - What two problems slowed the acceptance of Darwins...Ch. 20.3 - What is the difference between microevolution and...Ch. 20.3 - What types of data provide evidence that evolution...Ch. 20 - The father of taxonomy is: Charles Darwin. Charles...
Ch. 20 - The wings of birds, the legs of pigs, and the...Ch. 20 - Which of the following ideas proposed by Lamarck...Ch. 20 - Prob. 4TYKCh. 20 - Which of the following statements about...Ch. 20 - Which of the following ideas is not included in...Ch. 20 - Which of the following could be an example of...Ch. 20 - Medical advances now allow many people who suffer...Ch. 20 - Prob. 9TYKCh. 20 - Which of the following statements is not...Ch. 20 - Which of the following does not contribute to the...Ch. 20 - Prob. 12TYKCh. 20 - Design an experiment to test Lamarcks hypothesis...Ch. 20 - Prob. 14TYKCh. 20 - For centuries, animal breeders have used...
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
- which statement about macroevolution is true? a. The history of life on Earth follows a general trend toward increasing diversity marked by rare mass extinction events. b. The theory of punctuated equilibrium proposes that most evolutionary changes occur over long periods of time. c. The theory of gradualism proposes that major evolutionary changes happen relatively rapidly and are then followed by long periods of little change. d. All scientific understandings are complete, as scientific investigations have now filled in all remaining gaps.arrow_forwardAn octopus and an owl both have large eyes with similar structures. If their most recent common ancestor lacked eyes what is the reason for the similarity? Group of answer choices a. genetic drift b. convergent evolution c. mutation d. homology e. gene flowarrow_forwardThe 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.arrow_forward
- Researchers 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_forwardWhat is the difference between micro- and macroevolution? a. Microevolution describes the evolution of small organisms, such as insects, while macroevolution describes the evolution of large organisms, like people and elephants. b. Microevolution describes the evolution of microscopic entities, such as molecules and proteins, while macroevolution describes the evolution of whole organisms. c. Microevolution describes the evolution of populations, while macroevolution describes the emergence of new species over long periods of time. d. Microevolution describes the evolution of organisms over their lifetimes, while macroevolution describes the evolution of organisms over multiple generations.arrow_forwardAardvarks, anteaters, and pangolins are only distantly related but are similar in structure and form as a result of (a) homology (b) convergent evolution (c) biogeography (d) vestigial structures (e) artificial selectionarrow_forward
- Which assumption of cladistics is stated incorrectly? a. Living things are related by descent from a common ancestor. b. Speciation can produce one, two, or three new species. c. Traits change from one state to another. d. The polarity of a character state change can be determined.arrow_forwardThrough _______, a body part of an ancestor is modified differently in different lines of descent. a. homologous evolution c. adaptive divergence b. morphological convergence d. morphological divergencearrow_forwardAccording to the punctuated equilibrium model, (a) populations slowly diverge from one another (b) the evolution of species occurs in spurts interspersed with long periods of stasis (c) evolutionary novelties originate from preadaptations (d) reproductive isolating mechanisms restrict gene flow between species (e) the fossil record, being incomplete, does not accurately reflect evolution as it actually occurredarrow_forward
- In evolutionary trees, each node represents an __________. a. single lineage c. divergence b. extinction d. adaptive radiation.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_forwardWhich of the following evidence is not consistent with the idea that evolution is responsible for the diversity of animals we see today? A. The presence of vestigial organs in extant species B. Structural homologies among very different animals C. Fossil records of intermediate life forms D. Earth is not the center of the galaxy or universe Which of the following is not a part of the allopatric speciation by natural selection model? A. Geographically isolated populations evolve or change in response to novel environments. B. Reproductive isolation evolves as a by-product of changes in other traits associated with adapting to new resources or environments. C. Selection against hybridization leads to exaggeration of signals to facilitate recognizing conspecifics( individuals of the same species). D. Changes among or between populations occur while populations are geographically separated. Which of the following is not an example of the evolution of a key innovation (anew trait)…arrow_forward
arrow_back_ios
SEE MORE QUESTIONS
arrow_forward_ios
Recommended textbooks for you
Concepts of BiologyBiologyISBN:9781938168116Author:Samantha Fowler, Rebecca Roush, James WisePublisher:OpenStax College
Biology (MindTap Course List)BiologyISBN:9781337392938Author:Eldra Solomon, Charles Martin, Diana W. Martin, Linda R. BergPublisher:Cengage Learning
Concepts of Biology
Biology
ISBN:9781938168116
Author:Samantha Fowler, Rebecca Roush, James Wise
Publisher:OpenStax College
Biology (MindTap Course List)
Biology
ISBN:9781337392938
Author:Eldra Solomon, Charles Martin, Diana W. Martin, Linda R. Berg
Publisher:Cengage Learning
Discovering the tree of life | California Academy of Sciences; Author: California Academy of Sciences;https://www.youtube.com/watch?v=AjvLQJ6PIiU;License: Standard Youtube License