Campbell Biology in Focus (2nd Edition)
2nd Edition
ISBN: 9780321962751
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
Textbook Question
Chapter 27.4, Problem 3CC
MAKE CONNECTIONS The radiation of bilaterians in marine environments from 535 to 400 million years ago demonstrates that evolution is not goal oriented— it is not, for example, directed toward the origin of terrestrial vertebrates. Explain. (Review Concept 23.4.)
Expert Solution & Answer
Want to see the full answer?
Check out a sample textbook solutionStudents have asked these similar questions
Give typed explanation of both otherwise leave it
You have now studied three different types of anatomical structures.
Homologous structures show individual variations on a common anatomical theme. These
are seen in organisms that are closely related.
1. Give an example of a homologous structure from this activity:
Analogous structures have very different anatomies but similar functions. These are seen in
organismsthat are not necessarily closely related but live in similar environments and have
similar adaptations.
2. Give an example of an analogous structure from this activity:
Vestigial structures are anatomical remnants that were important in the organism's ancestors
but are nolonger used in the same way.
3. Give an example of a vestigial structure from this activity:
Define convergent evolution, and discuss how the cephalopod eye and the vertebrate eye demonstrate this phenomenon.
Chapter 27 Solutions
Campbell Biology in Focus (2nd Edition)
Ch. 27.1 - Prob. 1CCCh. 27.1 - Prob. 2CCCh. 27.2 - What is the Cambrian explosion? Why is it...Ch. 27.2 - Prob. 2CCCh. 27.3 - Prob. 1CCCh. 27.3 - WHAT IF? Would it be accurate to describe the...Ch. 27.4 - Prob. 1CCCh. 27.4 - Describe two key adaptations of aquatic...Ch. 27.4 - MAKE CONNECTIONS The radiation of bilaterians in...Ch. 27.5 - Describe two adaptations that have enabled insects...
Ch. 27.5 - MAKE CONNECTIONS Compare and contrast how the...Ch. 27.6 - Describe three key amniote adaptations for life on...Ch. 27.6 - Prob. 2CCCh. 27.6 - WHAT IF? Which came first, the chicken or the egg?...Ch. 27.7 - Describe how ocean communities changed in the...Ch. 27.7 - Prob. 2CCCh. 27.7 - Prob. 3CCCh. 27 - Prob. 1TYUCh. 27 - Fossil steroid and molecular clock evidence...Ch. 27 - Which of the following was probably the least...Ch. 27 - Prob. 4TYUCh. 27 - Prob. 5TYUCh. 27 - Prob. 6TYUCh. 27 - Prob. 7TYUCh. 27 - FOCUS ON EVOLUTION In Figure 27.29, circle the...Ch. 27 - FOCUS ON ORGANIZATION Early tetrapods had a...Ch. 27 - SYNTHESIZE YOUR KNOWLEDGE Collectively, do these...
Additional Science Textbook Solutions
Find more solutions based on key concepts
Visit this site (http://openstaxcollege.org/l/heartvalve) to observe an echocardiogram of actual heart valves o...
Anatomy & Physiology
How does trandlation differ from transcription?
Microbiology: Principles and Explorations
a. What three lineages of lobe-fins survive today? b. Go back to the phylogenetic tree in Interactive Question ...
Study Guide for Campbell Biology
1. Genetics affects many aspects of our lives. Identify three ways genetics affects your life or the life of a ...
Genetic Analysis: An Integrated Approach (3rd Edition)
Describe Mendels conclusions about how traits are passed from generation to generation.
Concepts of Genetics (11th Edition)
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
- GQ#14: Tiktaalik and Protarchaeopteryx are examples of transitional forms. In paleontology, what does transitional form mean?arrow_forwardMAKE CONNECTIONS Hawaiian silverswords underwent a remarkable adaptive radiation after their ancestor reached Hawaii, while the islands were still young(see Figure 25.22). Would you expect the cattle egretto undergo a similar adaptive radiation in the Americas(see Figure 52.18)? Explain.arrow_forwardPlease exaplain 1. One of the explanations for the diversity seen in the fossils corresponding to the Cambrian explosion is the existence of an evolutionary “arms race” between predators and prey. True or False ? 2.Our planet is undergoing such a rapid transition that we may have shifted into a new epoch: the Anthropocene. True or False?arrow_forward
- Please do fast How old are the first recognizable mammals relative to the K/T boundary layer (i.e., extinction of the dinosaurs), and from what reptilian lineage did they evolve? Is this lineage the same reptilian lineage that gave rise to birds? How are these lineages distinguished? Hold old are the first fossil birds? What other plant/animal lineages first became widespread in the Tertiary that were less common in the Cretaceous?..arrow_forwardTest Your Understanding Apply and Analyze 9. In interpreting a cladogram, (a) we can identify the specific ancestor of each taxon by tracing each branch back to the node closest to the root (b) taxa on the right side of a cladogram have evolved from the taxa on the left side (c) the relative placement of smaller branches allows us to determine the number of years since a particular taxon has evolved (d) we can determine relationships by tracing along the branches back to the most recent common ancestor (e) we must first identify horizontal gene transferarrow_forwardTest Your Understanding Know and Comprehend 4. The presence of homologous structures in two different groups of organisms suggests that (a) the organisms evolved from a common ancestor (b) convergent evolution has occurred (c) they belong to a polyphyletic group (d) homoplasy has occurred (e) independently acquired characters may evolve when organisms inhabit similar environmentsarrow_forward
- Thinking Critically When did the first true animals evolve? What atmospheric changes had to happen before animal life was possible? Are descendants of most of the early forms of animal life represented in the ocean today? Explain why.arrow_forwardWhat do similarities in the early development stages of the embryos indicate about the evolutionary history of these organisms? 9999 II II II II II II II II III III III III III III III Pig Calf Rabbit Man Fish Sala- Tortoise Chick mander Embryological Evidences The organisms evolved from the same embryo. The organisms are all in the phylum called mollusks. The organisms all located in the the fossil record 1 million years ago. The organisms all evolved from a common ancestor.arrow_forwardHow are vestigial structures an example of evidence of evolution?arrow_forward
- Part A Which of the following statements regarding the diversification of animals is supported by the current available evidence? sponges are a paraphyletic group of organisms ctenophores are basal metazoans most animals belong to the clade Bilateria animals descended from multiple ancestors Submit Provide Feedback Request Answerarrow_forwardWhat's More Activity 3. Deepening The Concepts Directions: Answer the following questions. 1. How does (a) relative dating and (b) absolute/radioactive datine determine the age of fossils? 2. How does embryology provide evidence for evolution? 3. How do homologous and vestigial structures provide evidence for evolution? 4. What could be possible for some species belonging to the same family to be presently living in various locations on Earth? You can furthel support your answer with an example.arrow_forwardDirections: Examine the following statements, then decide whichevidence of evolution does it supports. Choose whether biogeography,fossil records, molecular biology, structure, or embryology. 1. Vertebrates have tails at some point in their early development.2. Difference in the beaks of finches found in Galapagos Islandcompared to those that are found in mainland.3. Forelimbs of mammals, reptiles and birds show similarities inanatomical patterns.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 LearningBiology: The Dynamic Science (MindTap Course List)BiologyISBN:9781305389892Author:Peter J. Russell, Paul E. Hertz, Beverly McMillanPublisher:Cengage LearningBiology 2eBiologyISBN:9781947172517Author:Matthew Douglas, Jung Choi, Mary Ann ClarkPublisher:OpenStax
Biology (MindTap Course List)
Biology
ISBN:9781337392938
Author:Eldra Solomon, Charles Martin, Diana W. Martin, Linda R. Berg
Publisher:Cengage Learning
Biology: The Dynamic Science (MindTap Course List)
Biology
ISBN:9781305389892
Author:Peter J. Russell, Paul E. Hertz, Beverly McMillan
Publisher:Cengage Learning
Biology 2e
Biology
ISBN:9781947172517
Author:Matthew Douglas, Jung Choi, Mary Ann Clark
Publisher:OpenStax
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