Biology: Life on Earth with Physiology (11th Edition)
11th Edition
ISBN: 9780133923001
Author: Gerald Audesirk, Teresa Audesirk, Bruce E. Byers
Publisher: PEARSON
expand_more
expand_more
format_list_bulleted
Concept explainers
Videos
Textbook Question
Chapter 17.3, Problem 1CSC
It is not surprising that the forests of New Guinea are home to a variety of distinctive species like the miniature frog Paedophryne amauensis. New Guinea is, after all, an island. It is likely that in the past, populations colonized the island and became genetically isolated from mainland populations, thereby initiating the process of
Expert Solution & Answer
Want to see the full answer?
Check out a sample textbook solution
Students have asked these similar questions
which statement is false?
1)In the context of the evolution of senescence, the aphorism "live fast and die young" means that organisms with a more risky behavior will have a shorter life span.
2)Allopatric speciation is a type of speciation process that takes place in different geographic locations.
Can you answer all the parts to this diagram
Species 1 and 2 are sister species from which you’ve cloned related genes. On the gene tree on the top of the next page, use labels to answer the following questions:
(a) Label the node that represents a gene duplication with “D,”
(b) Label the nodes that represent speciation events with “S,”
(c) Pick a pair of genes that are paralogs and label them both “P.”
(d) Pick a pair of genes that are orthologs and label them both “O.”
The diagram below represents the ranges of 3 species (A, B, and C), which are
separated by a mountain range and river. It has been hypothesized that these three
species arose via vicariance ecological speciation. Specifically, the entire area was
originally occupied by a single species. Its range was split first by the mountain
range. Later, the river formed, separating populations on the eastern side of the
mountains. If this hypothesis is correct, phylogenetic analysis should reveal that:
NIS
4
44444
U
LEL
B
All three species are equally related to each other.
Species A and B are each other's closest relatives (sister taxa).
Species B and C are each other's closest relatives (sister taxa).
Species A and Care each other's closest relatives (sister taxa).
Chapter 17 Solutions
Biology: Life on Earth with Physiology (11th Edition)
Ch. 17.1 - The tiny frog paedophryne amauensis was discovered...Ch. 17.1 - describe how biologists define species and explain...Ch. 17.1 - One way to determine the number of species on...Ch. 17.1 - Prob. 1TCCh. 17.1 - describe the biological species concept and...Ch. 17.1 - list some reasons why it can be hard to tell...Ch. 17.2 - describe the main types of premating and...Ch. 17.2 - provide examples of each type of mechanism?Ch. 17.3 - It is not surprising that the forests of New...Ch. 17.3 - describe the two general steps that are required...
Ch. 17.3 - Make a list of events or processes that could...Ch. 17.3 - One possible explanation for the distinctive...Ch. 17.3 - explain the difference between allopatric and...Ch. 17.3 - How might conservation scientists use the map...Ch. 17.3 - explain adaptive radiation and describe the...Ch. 17.3 - Prob. 3TCCh. 17.3 - interpret an evolutionary tree diagram?Ch. 17.3 - Prob. 4TCCh. 17.4 - Prob. 1CTCh. 17.4 - describe the main causes of extinction?Ch. 17.4 - If specialization puts a species at risk for...Ch. 17.4 - Prob. 2CYLCh. 17.4 - Given that genetic isolation is the first step in...Ch. 17 - It is difficult to perform experiments that test...Ch. 17 - A species is a group of ________ that evolves...Ch. 17 - The biological species concept is difficult or...Ch. 17 - Define the following terms: species, speciation,...Ch. 17 - Fill in the following with the appropriate...Ch. 17 - Which of the following does not describe a...Ch. 17 - Many of the oak tree species in central and...Ch. 17 - Formation of a new species occurs when two...Ch. 17 - All instances of speciation require a. genetic...Ch. 17 - Review the material on the possibility of...Ch. 17 - The process by which many new species arise in a...Ch. 17 - Analysis of Rhagoletis fly populations in North...Ch. 17 - A drug called colchicine prevents cell division...Ch. 17 - A species may be at higher risk of extinction if...Ch. 17 - In the initial phase of allopatric speciation,...Ch. 17 - What are the two major types of reproductive...
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
- The “Progression Rule” of biogeography states that the oldest islands of an archipelago will host the oldest lineages of a radiation and the youngest islands will host the youngest lineages. The Hawaiian islands offer a number of examples of progression, one of which is depicted below. First, do Darwin’s Giant Daisies follow the Progression Rule? Second, describe a historical process of diversification and dispersal that might be responsible for the pattern you actually observe for Scalesia. This needn’t be completely precise—I don’t want every dispersal event documented!—just sufficient to capture the general process. (as a hint, he told me to consider speciation, extinction, and/or dispersal as the historical processes)arrow_forwardThe Galapagos Islands are inhabited by organisms that are similar to the organisms on the mainland of South America but they have specific characteristics that set them apart. One of the most famous groups of organisms that has been studied has been the finches. There are at least 13 different species of ground finches found throughout the Galapagos, most likely all coming from a common ancestor that arrived from the mainland of South America in the distant past. Which of the following explanation accurately explains the variation of finches on the Galapagos Islands? Question options: Divergent evolution has occurred because the finches all share characteristics that are similar to the common ancestor but differ because each species occupies different niches that require different characteristics to survive. Convergent evolution has occurred because the finches do not share characteristics that are similar to the common ancestor and differ because each species occupies…arrow_forwardIn Figure 2 a diagram shows how traits are shared (or not shared) in different generations. Based on the diagram: a. A, represents a plesiomorph trait. In how many generations is A shared (symplesiomorph)? b. C represents an apomorphictrait. What generations share C (synapomorphy)? c. E is considered an autapomorphic trait. Why do you think? d. What about B and D? How do we classify them?arrow_forward
- How, specifically, is the concept of ALLOMETRY relevant to the phylogenetic position of Homo floresiensis? Because if allometry explains the anatomy of Homo floresiensis then we can conclude that it is not separate species but instead a member of our species. Although most mammals on islands go through a process of getting smaller, Homo floresiensis evolved from a smaller ancestor to be bigger, meaning that allometry is an important factor. Mutations in the allometry allele are associated with many of the characteristics of Homo floresiensis. Because Homo floresiensis is so much smaller than other members of the genus Homo, it is important to determine how shape changes associated with smaller size impacted the species. Because Homo floresiensis had both small- and large-bodied forms, variation within the species is in large part dictated by allometry.arrow_forwardCrickets have colonized each island in the Hawaiian Archipelago. Geological data indicates that Kauai is the oldest island in the chain and Hawaii is the youngest. Researchers hypothesized that crickets sequentially colonized islands as they rose out of the ocean and created a cladogram based on molecular relationships to test this idea. 3) Which islands unambiguously show multiple independent colonization events? 4) How many colonization events were there on each of the islands showing multiple events?arrow_forwardAnole lizards can be found on many islands in the Caribbean that share similar environmental habitats. Anoles on the different islands share similar ecological morphotypes because of their similar habitats. Anoles on each island have evolved from a common ancestor into a variety of different species that occupy different ecological niches as shown below. Which of the following statements explains how the morphotypes found on one island, and shown in the figure, occurred as a result of speciation? A - Convergent evolution occurred, causing new species to evolve based on diverse new habitats. B - Phenotypic diversification occurred as a result of divergent evolution as the anoles adapted to new habitats. C - Natural selection occurred, so individual anoles with certain phenotypes can survive and reproduce only in a specific ecological niche. D - Reproductive isolation occurred as a result of habitat isolation since the anoles are unable to move into different ecological niches to breed.arrow_forward
- 1) What is the source of modifications that contribute to the variety of offspring produced by descent with modification (HINT: Think of concepts discussed in the genetics and reproduction units) 2) During Charles Darwin’s voyages, he observed species of plants and animals unique to specific islands, but with similar looking species on nearby islands. How did Darwin explain these similarities and differences? 3) Unique species of animals found on isolated islands are not randomly different from their mainland “cousins,” they are especially and uniquely adapted for island life. Provide examples of this phenomenon. How can this occurrence be explained?arrow_forwardHow do mechanisms of speciation, such as genetic isolation, reproductive barriers, and ecological factors, apply to the human-chimp-gorilla trichotomy? Discuss the role of these mechanisms in driving speciation and shaping the evolutionary relationships among humans, chimps, and gorillas, based on genetic evidence such as comparative genomics and molecular phylogenetics.arrow_forwardCrickets have colonized each island in the Hawaiian Archipelago. Geological data indicates that Kauai is the oldest island in the chain and Hawaii is the youngest. Researchers hypothesized that crickets sequentially colonized islands as they rose out of the ocean and created a cladogram based on molecular relationships to test this idea. 1) Mark & label (as “MRCA”) the most recent common ancestor for all crickets on the island of Kauai. 2) Molokai is roughly equally distant from Oahu as Maui, but not equally related. Are Molokai crickets more closely related to those on Oahu or Maui?_________arrow_forward
- Two hundred years ago, the fly species Rhagoletis pomonella only laid its eggs on fruit of the hawthorn tree. Today, different "host races" of R. pomonella lay their eggs on hawthorns OR apples. Apples occur within the range of hawthorns, so divergence between apple flies and hawthorn flies could be the first step in sympatric speciation. Choose the evidence that would suggest that R. pomonella is currently undergoing sympatric speciation. Check ALL answers that apply. A. Apple flies and hawthorn flies are able to form fertile hybrids. B. Apple flies and hawthorn flies are physically indistinguishable from each other. C. Apple flies typically mate with apple flies, and hawthorn flies typically mate with hawthorn flies. D. Apple flies and hawthorn flies emerge from their hosts at different times of the year.arrow_forwardYour descendants have fortunately inherited your fascination with rodent genetics. Fifty thousand years after the original volcanic eruption, your descendants return to the island where the two populations are still separated. They repeat the same experiments that you carried out. Their data indicate there is no reproductive isolation between members of A1 and A2. DNA sequences from randomly chosen individuals from the two populations are shown here – A1 ATAAGA A1 ACAAGA A1 ACATGA A2 TCATTT A2 TCATTG A2 TCATTT A)Describe relative levels of genetic variation (simply state low or high) among individuals in population A1. B)Describe relative levels of genetic variation (simply state low or high) among individuals in population A2. C)Describe relative levels of genetic variation (simply state low or high) between individuals in populations A1 and individuals in population A2.arrow_forwardYour descendants have fortunately inherited your fascination with rodent genetics. Fifty thousand years after the original volcanic eruption, your descendants return to the island where the two populations are still separated. They repeat the same experiments that you carried out. Their data indicate there is no reproductive isolation between members of A1 and A2. DNA sequences from randomly chosen individuals from the two populations are shown here – A1 ATAAGA A1 ACAAGA A1 ACATGA A2 TCATTT A2 TCATTG A2 TCATTT A)Name one mechanism by which differences between A1 and A2 became fixed in the two populations (not how the differences arose in the first place).arrow_forward
arrow_back_ios
SEE MORE QUESTIONS
arrow_forward_ios
Recommended textbooks for you
Human Anatomy & Physiology (11th Edition)BiologyISBN:9780134580999Author:Elaine N. Marieb, Katja N. HoehnPublisher:PEARSON
Biology 2eBiologyISBN:9781947172517Author:Matthew Douglas, Jung Choi, Mary Ann ClarkPublisher:OpenStax
Anatomy & PhysiologyBiologyISBN:9781259398629Author:McKinley, Michael P., O'loughlin, Valerie Dean, Bidle, Theresa StouterPublisher:Mcgraw Hill Education,
Molecular Biology of the Cell (Sixth Edition)BiologyISBN:9780815344322Author:Bruce Alberts, Alexander D. Johnson, Julian Lewis, David Morgan, Martin Raff, Keith Roberts, Peter WalterPublisher:W. W. Norton & Company
Laboratory Manual For Human Anatomy & PhysiologyBiologyISBN:9781260159363Author:Martin, Terry R., Prentice-craver, CynthiaPublisher:McGraw-Hill Publishing Co.
Inquiry Into Life (16th Edition)BiologyISBN:9781260231700Author:Sylvia S. Mader, Michael WindelspechtPublisher:McGraw Hill Education
Human Anatomy & Physiology (11th Edition)
Biology
ISBN:9780134580999
Author:Elaine N. Marieb, Katja N. Hoehn
Publisher:PEARSON
Biology 2e
Biology
ISBN:9781947172517
Author:Matthew Douglas, Jung Choi, Mary Ann Clark
Publisher:OpenStax
Anatomy & Physiology
Biology
ISBN:9781259398629
Author:McKinley, Michael P., O'loughlin, Valerie Dean, Bidle, Theresa Stouter
Publisher:Mcgraw Hill Education,
Molecular Biology of the Cell (Sixth Edition)
Biology
ISBN:9780815344322
Author:Bruce Alberts, Alexander D. Johnson, Julian Lewis, David Morgan, Martin Raff, Keith Roberts, Peter Walter
Publisher:W. W. Norton & Company
Laboratory Manual For Human Anatomy & Physiology
Biology
ISBN:9781260159363
Author:Martin, Terry R., Prentice-craver, Cynthia
Publisher:McGraw-Hill Publishing Co.
Inquiry Into Life (16th Edition)
Biology
ISBN:9781260231700
Author:Sylvia S. Mader, Michael Windelspecht
Publisher:McGraw Hill Education
Evidence for Evolution - Biogeography; Author: Viced Rhino;https://www.youtube.com/watch?v=304wIG6H11E;License: Standard YouTube License, CC-BY