ECHINODERMS

ECHINODERMS

• Sea stars
• Sea urchins
• Sea cucumbers
• Brittle sars
• Feather stars

ENDOSKELETON

• Echinoderms usually have Radial symmetry
• Echinoderms have a skeleton located inside the body called endoskeleton
• Spines poke through the echinoderm's skin

WATER PRESSURE

• Echinoderms use a system called water pressure that helps them feed,breath and move.
• Seawater enters the system and moves to different parts of the animal's body under pressure.
• The system ends in the echinoderm's many tube feet,which cling to surfaces like small suction cups.
• For some echinoderms this system is strong enough to open the shells of mollusks

QUESTIONS

• What body plan do echinoderms have?
• What kind of skeleton do echinoderms have?
• What are some names of echinoderms?
• What system helps echinoderms use to help them feed,breathe and move?

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