MADE OF UNSPECIALIZED CELLS AND HAS PORES TO LET WATER IN AND OUT TO FILTER FEED

STINGING CELLS NAMED CNIDOCYTES ARE SPREAD THROUGH TENTACLES.

SEGMENTED BODY AND NO LIMBS

Has a mantle

MANTLE IS INSIDE AND CREATED THE TWO VALVES THAT PROTECTS IT

NO VISIBLE SHELL, MANY ARMS, AND WELL DEVELOPED EYES

HAS A HARD EXOSKELETON,BODY SEGMENTS, AND JOINTED APPENDAGES

HARD EXOSKELETON, BODY SEGMENTS, JOINTED APPENDAGES, AND ALWAYS LIVES IN OR NEAR WATER

SAME DESCRIPTIONS AS ARTHROPODA, BUT HAS WALKING LEGS FOR EVERY SEGMENT

Internal Skeleton, no bilateral symmetry during adulthood

INTERNAL SKELETON, BILATERAL SYMMETRY

FISH WITH BONE FOR SKELETON, HAS SCALES, AND PLATE COVERS GILLS