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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 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)? • 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)
Radiata Bilateria Eumetazoa Parazoano true tissues Multicellularity
ECHINODERM BODY PLAN • bilaterally-symmetric larvae • pentaradially-symmetric adults • water vascular system for respiration, circulation, movement • CaCO3 endoskeleton • oral and aboral sides
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