What characteristics do they have?
5 arms that radiate from a central disc
What unique characteristic do they have?
regenerative abilities
Is the ambulacral groove open or closed?
open
Where is the madreporite located?
aboral side
Do they have pedicellariae?
yes
Do they have dermal branchiae?
yes
Where are they found?
worldwide
What habitats are they found in?
ocean
rocky shores
What class and what phylum?
what is it called?
class: Asteroidea
phylum: Echinodermata
called the sea star
Front image: