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Why must a normal body temperature be maintained in order for chemical reactions to be continued at life-sustaining rates?
Tracheae
A network of small tubes in insects and some arachnids that facilitates respiratory gas exchange directly with body cells.
Gas Exchange
The biological process through which organisms exchange gases with their environment, including the intake of oxygen and the release of carbon dioxide.
Choanocytes
Specialized cells found in sponges that use their flagella to create a water flow and trap food particles.
Phylum Cnidaria
A taxonomic rank and classification category that includes jellyfish, corals, and other sea anemones characterized by cnidocytes, specialized cells for capturing prey.
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