Yes, it can if you cut a starfishes arm than it will grow a new one!
I'm not fully certain about if its cut in two but i know if a limb is cut off it regrows, The starfish if cut in two it maybe possible both halves regrow the other half into two individual starfish.
Starfish
starfish
starfish
Yes, as long as the starfish is still alive and both sides of the starfish have part of the center it can regenerate.
Starfish
starfish can live in the ocean
yes you can because the starfish's body is made out of a special type of glue.
Starfish still live... strange question
a earthworm and a brain
Yes
yes they can because some starfish live in small groups also how are you