Yes. Echinoderms, such as starfish, are segmented, but their segmentation is not along a longitudinal axis because of their radial symmetry. Source: http://highered.mcgraw-hill.com/sites/0073031216/student_view0/exercise37/segmentation.html
The types of organisms which have segmented bodies include annelids, arthropods, echinoderms, and chordates. Some of the most obvious examples of segmentation are found in insects which belong to the arthropods.
they are
No, a caterpillar is an Arthropod. There are over a million types of anthropoids on earth. Here are three things all arthropods have 1. Chitonous 2. Exoskeleton segmented body 3. Jointed appendages
Echinoderms are in the Animalia kingdom.
echinoderms
As of yet, there is no known species of parasitic echinoderms.
The scientific name for Echinoderms is Echinodermata.
Yes Eventually echinoderms do live in water.
Yes, a starfish is segmented into arms or rays, which radiate out from a central disc. Each arm contains intricate structures that help the starfish move, sense its environment, and capture prey.
segmented body
Echinodermates possess a water vascular system.