Biology (MindTap Course List)

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



Biology (MindTap Course List)

11th Edition
Eldra Solomon + 3 others
Publisher: Cengage Learning
ISBN: 9781337392938
Chapter 31.3, Problem 10LO
Textbook Problem

Describe characteristics of nematodes and identify four parasitic nematodes.

Summary Introduction

To describe: The characteristics of nematodes and identify the four parasitic nematodes.

Concept introduction: Nematodes play vital ecological roles as parasites, predators, and decomposers of small organisms. They are widely distributed in the soil, fresh water, and marine water sediments.

Explanation of Solution

The characteristics of nematodes are as follows:

  • Body is bilaterally symmetrical, elongated, and unsegment.
  • Body is covered with thick, flexible multiple-layer of collagenous cuticle, and contains cuticular hair or spines.
  • Periodically the molting process continues. During molting process, the outer body covering is replaced by the growth of new covering called cuticle...

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Chapter 31 Solutions

Biology (MindTap Course List)
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Ch. 31.2 - Describe the principal characteristics of annelids...Ch. 31.2 - Describe the distinguishing characteristics of the...Ch. 31.2 - What are some advantages of cephalization and a...Ch. 31.2 - On what basis have biologists classified...Ch. 31.2 - How does the lifestyle of a gastropod differ from...Ch. 31.2 - What are two distinguishing characteristics for...Ch. 31.3 - Summarize what is known about the phylogeny of the...Ch. 31.3 - Describe characteristics of nematodes and identify...Ch. 31.3 - Describe six key characteristics of arthropods,...Ch. 31.3 - Identify adaptations that have contributed to the...Ch. 31.3 - What characteristics distinguish nematodes from...Ch. 31.3 - Describe four key arthropod characteristics, and...Ch. 31.3 - How do crustaceans differ from chelicerates?Ch. 31.3 - Describe four adaptations that have contributed to...Ch. 31 - Collar cells (choanocytes) are characteristic of...Ch. 31 - Cnidocytes (a) are characteristic of sponges (b)...Ch. 31 - Which of the following is associated with the...Ch. 31 - Trochophore larvae are characteristic of (a)...Ch. 31 - Which of the following is not an adaptation to...Ch. 31 - An open circulatory system (a) is characteristic...Ch. 31 - Which of the following characteristics is...Ch. 31 - Trilobites (a) were early mollusks (b) are...Ch. 31 - Which of the following is not characteristic of...Ch. 31 - Which of the following is characteristic of...Ch. 31 - The correct sequence of complete metamorphosis of...Ch. 31 - Test Your Understanding 12. VISUALIZE Draw a cross...Ch. 31 - EVOLUTION LINK Discuss important adaptations made...Ch. 31 - EVOLUTION LINK Discuss the idea that every...Ch. 31 - INTERPRET DATA Imagine that you discover a new...Ch. 31 - EVOLUTION LINK Why have biologists stopped using...Ch. 31 - EVOLUTION LINK Animal body plans have generally...Ch. 31 - EVOLUTION LINK Insects that undergo complete...Ch. 31 - SCIENCE, TECHNOLOGY, AND SOCIETY international...

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