Give reasons why the skeletons of sponges may or may not be considered exoskeletons. [Please select]
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What other types of exoskeletons are found in segmented worms. [Please select]
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What is the explanation of the various forms of exoskeletons found. [Please select]
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The pellets were of characteristic appearance, elliptical, approximately 15 millimeters in diameter, 30 millimeters long, pinkish or purplish, composed of insects' exoskeletons compacted, and comminuted to about the consistency they would have after passing through a meat grinder. [Please select]
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Comparative Study of Exoskeletons, 93; Protective Coloration, 94; Animal Associations, 96; Protective Habits and Powers, 98; Defensive Structures, 99; Thesis: "Adaptation for Protection," 99. [Please select]
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