Ophiuroids are of no direct significance to humans except for purposes of scientific research.
1. Nighttime feeding posture of snake star striped morph (Astrobrachion constrictum); 2. Feeding posture of Amphiura filiformis; 3. Snake star (A. constrictum) yellow morph coiled up during the day; 4. Northern basket star (Gorgonocephalus arcticus). (Illustration by Emily Damstra)
1. Ophiura ophiura; 2. Tropical brittle star (Ophiactis savignyi); 3. Common brittle star (Ophiothrix fragilis); 4. Dwarf brittle star (Amphipholis squa-mata). (Illustration by Emily Damstra)
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This ebook provides an introductory explanation of the workings of the human body, with an effort to draw connections between the body systems and explain their interdependencies. A framework for the book is homeostasis and how the body maintains balance within each system. This is intended as a first introduction to physiology for a college-level course.