Polyp Medusa1. They are sessile in nature.1. They are mostly free-swimming in nature.2. They reproduce both sexually as well asexually.2. They reproduce only by sexual mode of reproduction.3. Polyp can form both polyp and medusa.3. Medusa form medusa only.4. They do not have any sense organs.4. They have many sense organs like tentacles, photoreceptors, etc.5. They are primitive in nature.5. They are evolved forms of polyp.