As you are walking along a beach, you find an animal and believe that it belongs to the class Asteroidea. Which of the following characteristics would support your hypothesis that the animal is a sea star and not another type of echinoderm? a. It feeds on other animals. b. It has a hydrostatic skeleton, formed from its water vascular system.c. Its central region is not well delineated from its appendages.d. It is pentaradially symmetric.
Sea stars also known as star fish belong to the class Asteroidea, and they are distinct from other types of echinoderm because they are mainly carnivorous and even pray on other echinoderms.
