Opening (inlet) for water entering the water vascular system

Structures are used for locomotion and capturing food (suction cup-like bottom)

Structures of the digestive system that produce enzymes for the digestion of food

tube feet

stone canal

digestive glands

madreporite

tube feet

stone canal

digestive glands

madreporite

Opening (inlet) for water entering the water vascular system

Structures are used for locomotion and capturing food (suction cup-like bottom)

Structures of the digestive system that produce enzymes for the digestion of food

endoskeleton

exoskeleton

tube feet

stone canal

digestive glands

madreporite

Opening (inlet) for water entering the water vascular system

Structures are used for locomotion and capturing food (suction cup-like bottom)

Structures of the digestive system that produce enzymes for the digestion of food

A

B

Mollusca

Arthropoda

Echinodermata

Ctenophora

Bryozoa