Question

What are characteristics of Platyhelminthes, coelenterate, annelida

Answer 1

Answer:

The characteristics of Echinodermata are: They are unsegmented, marine aninals. They have an exoskeleton and a spiny surface. They are radially symmetrical ie.They have similar parts (usually five) arranged regularly around a central point.

Answer 2

Answer:

ans is

Explanation:

platyhelmenthis

they are dorso-ventrical.

they are called flatworm.

billatrally.

coelenterates

they are called cnidarians.

they are diploblastic.

annelida.

they are aquatic or terrestial.

billateral symmentry.

triploblast.

this will help you.