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Biology (MindTap Course List)

11th Edition
Eldra Solomon + 3 others
Publisher: Cengage Learning
ISBN: 9781337392938

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BuyFindarrow_forward

Biology (MindTap Course List)

11th Edition
Eldra Solomon + 3 others
Publisher: Cengage Learning
ISBN: 9781337392938
Chapter 32.3, Problem 3LO
Textbook Problem
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Describe characteristics of chordates, including four shared derived characters.

Summary Introduction

To describe: The characteristics of chordates including four shared derived characters.

Concept introduction: Animal phylogeny is a rapidly changing field for the biologists. Even if the members of animal kingdom are incredibly diverse, there are various animals sharing certain features that differentiate them from other organisms of the kingdom. Chordates are the deuterostomes. They are coelomates with bilateral symmetrical body structure. Chordates are divided into three clades, namely urochordates, cephalochordates, and vertebrates.

Explanation of Solution

There are four shared derived characters that differentiate the chordates from other group of organisms. These characters are evolved from other animal clades in connection with their locomotion and obtaining food, a postanal tail, endostyle, tubular nerve cord, and notochord. The characteristics of chordates including four shared derived characters are as follows:

  • Some of the chordates have notochord at a certain period of their developmental cycle, whereas some chordates have notochord during their whole life time like vertebrates. The notochord is the longitudinal rod-like structure that is composed of spongy connective tissue cells.
  • Some of the chordates have dorsal tubular nerve cord at a certain period of their developmental cycle and some chordates have dorsal tubular nerve cord during their whole life time.
  • Chordates have muscular postanal tail...

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Chapter 32 Solutions

Biology (MindTap Course List)
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Ch. 32.4 - How are the main derived chordate characters...Ch. 32.4 - If you found a small fishlike animal along the...Ch. 32.5 - Describe four shared derived characters of...Ch. 32.5 - Describe the major taxa of extant vertebrates.Ch. 32.5 - What shared derived characters distinguish the...Ch. 32.5 - What are the main clades (classes) of fishes? the...Ch. 32.6 - Distinguish among the major groups of jawless...Ch. 32.6 - How do lampreys and hagfishes resemble...Ch. 32.7 - Trace the evolution of jawed fishes and early...Ch. 32.7 - From an evolutionary perspective, what is the...Ch. 32.7 - What changes allow amphibians to move from aquatic...Ch. 32.8 - Describe three vertebrate adaptations to...Ch. 32.8 - Describe the reptiles (including the birds) and...Ch. 32.8 - Describe five key characters of mammals and...Ch. 32.8 - Describe three adaptations that have allowed...Ch. 32.8 - Which amniotes are endothermic? What are some...Ch. 32.8 - Argue for classifying birds and reptiles in a...Ch. 32.8 - Contrast the three main clades of mammals.Ch. 32 - Test Your Understanding 1.Which of the following...Ch. 32 - Test Your Understanding 2.Which of the following...Ch. 32 - Test Your Understanding 3.A shark is characterized...Ch. 32 - Test Your Understanding 4.Which of the following...Ch. 32 - Test Your Understanding 5.Reptiles (a) are all...Ch. 32 - Test Your Understanding 6.Which of the following...Ch. 32 - Test Your Understanding 7.Which of the following...Ch. 32 - Test Your Understanding 8.VISUALIZE Draw a simple...Ch. 32 - Test Your Understanding 9.EVOLUTION LINK Sea...Ch. 32 - Test Your Understanding 10.EVOLUTION LINK Most...Ch. 32 - Test Your Understanding 11.EVOLUTION LINK Discuss...Ch. 32 - Test Your Understanding 12.INTERPRET DATA Imagine...Ch. 32 - Test Your Understanding 13.SCIENCE, TECHNOLOGY,...

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