1. Echinoderms are the only invertebrate group of ______ . Echinoderm comes from echino-, meaning "spiny," and -derm, meaning "skin." Most echinoderms have some type of spine embedded in their skin. For some species, such as the sea urchin, these spines are very large, but for other species, such as the starfish, these spines may be very small. protostomes deuterostomes acoelomates 2. Like all starfish, the crown-of-thorns starfish is ____. spirally bilaterally radially
1. Echinoderms are the only invertebrate group of ______ . Echinoderm comes from echino-, meaning "spiny," and -derm, meaning "skin." Most echinoderms have some type of spine embedded in their skin. For some species, such as the sea urchin, these spines are very large, but for other species, such as the starfish, these spines may be very small. protostomes deuterostomes acoelomates 2. Like all starfish, the crown-of-thorns starfish is ____. spirally bilaterally radially
Human Anatomy & Physiology (11th Edition)
11th Edition
ISBN:9780134580999
Author:Elaine N. Marieb, Katja N. Hoehn
Publisher:Elaine N. Marieb, Katja N. Hoehn
Chapter1: The Human Body: An Orientation
Section: Chapter Questions
Problem 1RQ: The correct sequence of levels forming the structural hierarchy is A. (a) organ, organ system,...
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1. Echinoderms are the only invertebrate group of ______ . Echinoderm comes from echino-, meaning "spiny," and -derm, meaning "skin." Most echinoderms have some type of spine embedded in their skin. For some species, such as the sea urchin, these spines are very large, but for other species, such as the starfish, these spines may be very small.
- protostomes
- deuterostomes
- acoelomates
2. Like all starfish, the crown-of-thorns starfish is ____.
- spirally
- bilaterally
- radially
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