Question

Which of the following properties is unique to echinoderms within higher invertebrates? radial symmetry bilateral symmetry segmentation exoskeleton made of chitin

Answer 1

The unique property of an echinoderm within higher invertebrates is their radial symmetry. These echinoderms include the famous starfish, sea urchin,

Answer 2

A. Radial symmetry

Step-by-step explanation:

When any vertical plane going through the center of the body of organisms can divide it into two similar halves, it is called as radial symmetry. Radial symmetry is the unique property of echinoderms within higher invertebrates. Rest of the higher invertebrates (annelids, arthropods, molluscs) exhibit bilateral symmetry.