Seudónimo Seudónimo 14-02-2022 Biology contestada Sienna made a chart listing characteristics of two kinds of echinoderms.Which headings correctly complete the chart?X: Sea UrchinsY: Brittle StarsX: Brittle StarsY: Sea UrchinsX: Sea CucumbersY: Brittle StarsX: Brittle StarsY: Sea CucumbersPLEASE HELP ME!!!!!!!!!!!!