Biology (MindTap Course List)
11th Edition
ISBN: 9781337392938
Author: Eldra Solomon, Charles Martin, Diana W. Martin, Linda R. Berg
Publisher: Cengage Learning
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Chapter 31.1, Problem 1LO
Summary Introduction
To identify: The important characteristics of poriferans.
Concept introduction: All sponges belong to a phylum called Porifera. They are the simplest animals with cellular level of organization. They have diverged from other animals early in the evolution. Hence, they are called as basal animals. They have a very simple body structure composed of only two layers of cells. In between the two layers, a gelatinous region is present called mesohyl. The exchange of nutrient and waste material takes place through diffusion in sponges.
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Chapter 31 Solutions
Biology (MindTap Course List)
Ch. 31.1 - Prob. 1LOCh. 31.1 - Prob. 2LOCh. 31.1 - Prob. 3LOCh. 31.1 - connect What is the significance of choanocytes in...Ch. 31.1 - Prob. 2CCh. 31.1 - VISUALIZE Sketch the major events of the life...Ch. 31.1 - Prob. 4CCh. 31.2 - Prob. 4LOCh. 31.2 - Prob. 5LOCh. 31.2 - Prob. 6LO
Ch. 31.2 - Prob. 7LOCh. 31.2 - Prob. 8LOCh. 31.2 - What are some advantages of cephalization and a...Ch. 31.2 - On what basis have biologists classified...Ch. 31.2 - Prob. 3CCh. 31.2 - Prob. 4CCh. 31.3 - Prob. 9LOCh. 31.3 - Prob. 10LOCh. 31.3 - Describe six key characteristics of arthropods,...Ch. 31.3 - Prob. 12LOCh. 31.3 - Prob. 1CCh. 31.3 - Describe four key arthropod characteristics, and...Ch. 31.3 - Prob. 3CCh. 31.3 - Describe four adaptations that have contributed to...Ch. 31 - Prob. 1TYUCh. 31 - Prob. 2TYUCh. 31 - Which of the following is associated with the...Ch. 31 - Trochophore larvae are characteristic of (a)...Ch. 31 - Prob. 5TYUCh. 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 - Prob. 9TYUCh. 31 - Prob. 10TYUCh. 31 - The correct sequence of complete metamorphosis of...Ch. 31 - Test Your Understanding 12. VISUALIZE Draw a cross...Ch. 31 - Prob. 13TYUCh. 31 - Prob. 14TYUCh. 31 - INTERPRET DATA Imagine that you discover a new...Ch. 31 - Prob. 16TYUCh. 31 - Prob. 17TYUCh. 31 - Prob. 18TYUCh. 31 - SCIENCE, TECHNOLOGY, AND SOCIETY international...
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