What are the unique features of the animals of phylum – Echinodermata?
The animals belonging to the phylum – Echinodermata are pentaradially symmetrical which means their body can be divided into 5 or multiple parts.
The exoskeleton of the body is full of spikes, spines, and pedicellariae. The body is divided into oral and aboral planes. In the oral plane, there are 5 ambulacral grooves. There is a unique water vascular system inside the coelom of the body. Their organ of locomotion is the adjacent tube feet.
