This animal as an adult has radial symmetry,an internal skeleton,fluid-filled feet,and is a deuterostome.This animal is ___.

Question

Quizplus · Accepted Answer

A sea star is the only option that fits all the given characteristics. It has radial symmetry, an internal skeleton, fluid-filled feet (tube feet), and is a deuterostome. Jellyfish have radial symmetry but lack an internal skeleton and are not deuterostomes. Slugs have bilateral symmetry and do not have an internal skeleton or fluid-filled feet. Isopods have bilateral symmetry and an exoskeleton, not an internal skeleton. Therefore, the best choice given the characteristics is A, a sea star.

This Animal as an Adult Has Radial Symmetry,an Internal Skeleton,fluid-Filled