What is starfish?All details about starfish?
Answers
Starfish, or sea stars, are Echinoderms of the Class Asteroidea. All live in the ocean, on the sea floor. ... The bodies of starfish are composed of calcium carbonate plates, known as 'ossicles'. These form the endoskeleton, which takes on a variety of forms such as spines and granules.
Class: Asteroidea; De Blainville, 1830
Phylum: Echinodermata
Answer:
Starfish or sea stars are star-shaped echinoderms belonging to the class Asteroidea.
Explanation:
They typically have a central disc and usually five arms, though some species have a larger number of arms. The aboral or upper surface may be smooth, granular or spiny, and is covered with overlapping plates. Common usage frequently finds these names being also applied to ophiuroids, which are correctly referred to as brittle stars or basket stars. Starfish are also known as Asteroids due to being in the class Asteroidea. They have a surprisingly unusual anatomy, with no brain or blood, yet are able to digest food outside their body.
Scientific name: Asteroidea
Phylum: Echinodermata
Class: Asteroidea; Blainville, 1830
Kingdom: Animalia
Higher classification: Asterozoa
Rank: Class
Mark me as brainliest!