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Adam Lipnicki '

Blume Ch 13.4

QuestionAnswer
What do echinoderms have that is a hard covered bumpy or spiny epidermis? endoskeleton
What type of symmetry do echinoderms have? radial symmetry
What does water-vascular system mean? a network of water-filled canals connected to thousand of tube feet
What does the water-vascular system allow echinoderms to do? move , exchange carbon dioxide and oxygen, capture food, and remove waste
About how many species of echinoderms exist? 6,000
What number of echinoderms have at least 5 arms arranged around a central point; reproduce sexually; and regenerate a lost arm? 1/3 or 33%
What type of echinoderm allows a predator to break off an arm, while the brittle star escapes ;they quickly regenerate the lost arm bristle stars
What type of echinoderms are disk- or globe-shaped animals covered with spines? sea urchins and sand dollars
What echinoderms are soft-bodies with a leathery covering? sea cucumbers
How do echinoderms help the environment they recycle materials and are used in research as possible medicine sources
Created by: alipnicki
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