Class 11 NEET Biology Animal Kingdom Questions Part 1

(a) : Starfishes belong to Class Asteroidea, characterized by the presence of five or more arms not sharply set off from a central disc. They are free living marine animals that occur on sandy or muddy bottoms or crawl about over rocks and shells. All are carnivorous, feeding mainly on crustaceans, polychaetes and molluscs. They also feed on detritus and plankton. They are in general, exhibit remarkable powers of autotomy and regeneration.