Phylum: Echinodermata

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Jennifer Franco's picture

Under the major group Deuterostomia

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What characteristic is unique to echinoderms?

water vascular system

What type of symmetry do these organisms demonstrate?

secondary radial symmetry

What does the word "Echinodermata" mean?

spiny skin

What type of development do these animals have?


When did they appear in the evolutionary history?


Where are they found?


Type of circulatory system


type of respiratory system

dermal branchiae

type of nervous system

ring and radial nerves

type of body cavity