NAME THE STRUCTURE

MOUTH

IS THIS THE ORAL OR ABORAL SURFACE OF THE

SEA STAR?

ORAL

NAME THE SPINY STRUCTURES

ORAL SPINES

WHAT IS THEIR FUNCTION

FOOD PROCUREMENT

NAME THE STRUCTURE

AMBULACRAL GROOVE

WHAT IS IN THE AMBULACRAL GROOVES?

TUBE FEET

WHAT IS THEIR FUNCTION?

LOCOMOTION AND HOLDING ON TO PREY

HOW DO THE TUBE FEET WORK?

LIKE SUCTION CUPS

WHAT CONTROLS THE TUBE FEET?

THE WATER VASCULAR SYSTEM THAT MOVES WATER

INTO OR OUT OF THE TUBE FEET

NAME THE SPINY STRUCTURES

SPINES

NAME THESE STRUCTURES

ARMS OR RAYS

NAME THE PHYLUM

PHYLUM ECHINODERMATA

NAME CHARACTERISTICS OF PHYLUM ECHINODERMATA

CALCIUM-BASED ENDOSKELETON FORMED OF INDIVIDUAL UNITS CALLED OSSICLES

RADIAL SYMMETRY IN ADULT

PENTAMOROUS

SPINY-SKINNED

USUALLY TUBE FEET AND

PEDICELLARIAE

DEUTEROSTOME

HOW IS THE SEA STAR’S DIGESTIVE SYSTEM UNIQUE?

TWO-PART STOMACH: EXTRACELLULAR DIGESTION