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Chordates
________ are bilaterally symmetrical and have a closed circulatory system.
pharyngeal slits
The notochord provides support and flexibility, while the ________ are used for filter feeding or gas exchange.
post anal tail
The ________ is used for locomotion in aquatic species.
Phylum Chordata
________ is a diverse group of animals that possess a notochord, dorsal nerve cord, pharyngeal slits, and a post- anal tail at some point in their life cycle.
Chordates
________ are found in a variety of habitats, from the deep sea to freshwater streams and terrestrial environments.
Note 
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