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The Deuterostomes

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The Deuterostomes. Echinodermata Chordata. Quiz ( Champaca ). What is the most distinctive structure of echinoderms?  What are these structures that operate like suction cups (and are found at the end of the radial canals)?

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The Deuterostomes

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  1. The Deuterostomes Echinodermata Chordata

  2. Quiz (Champaca) • What is the most distinctive structure of echinoderms?  • What are these structures that operate like suction cups (and are found at the end of the radial canals)? • From what words did "echinodermata"  come from? Give the words and their meanings. • In what form are nitrogen-containing cellular wastes released? • Give one class under echinodermata and one example(common name/scientific name).  Bonus: Answer only one. • Give an echinoderm found in the Philippines.  (1 point) • Give the scientific names of 2 echinoderms. (1 point, 0.5 each)

  3. Radiata Bilateria Eumetazoa Parazoano true tissues Multicellularity

  4. Common Features

  5. Distinguishing features

  6. ECHINODERM BODY PLAN • bilaterally-symmetric larvae • pentaradially-symmetric adults • water vascular system for respiration, circulation, movement • CaCO3 endoskeleton • oral and aboral sides

  7. CHORDATA BODY PLAN • notochord – flexible rod between the nerve cord and digestive tract • hollow dorsal nerve cord • pharyngeal slits or pouches connecting inside of throat to outside of neck (functioned first as filter-feeding devices) • post-anal tail • internal segmentation

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