Biology: Life on Earth
10th Edition
ISBN: 9780321729712
Author: Gerald Audesirk, Teresa Audesirk, Bruce E. Byers
Publisher: Benjamin Cummings
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Chapter 23, Problem 7RQ
Summary Introduction
To review:
Three functions of water-vascular system of echinoderms.
Introduction:
Echinoderms consist of animals like sea urchins, starfish, and sea lilies. The bumps and spines extending from the skin of these animals is a characteristic feature of these animals. Another feature of these animals is tiny-tube feet. These feet are part of the water-vascular system.
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Chapter 23 Solutions
Biology: Life on Earth
Ch. 23 - Animals obtain energy by ______; they generally...Ch. 23 - 2. Bilaterally symmetrical animals have _____...Ch. 23 - Animals that have an anterior and posterior end...Ch. 23 - Prob. 4FTBCh. 23 - Animals that lack a backbone are described as;...Ch. 23 - Three major groups within the mollusks are the...Ch. 23 - Phyla that contain animals with segmented bodies...Ch. 23 - Prob. 8FTBCh. 23 - Prob. 1RQCh. 23 - Prob. 2RQ
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