Hint The characteristic of coelenterate is having an Adamasia with a polyp body. The characteristics of amphibians are that their eggs are fertilized outside the body and reproduction takes place in freshwater and laying of eggs on the land
Petromyzon (lamprey) is an ectoparasite of fish belonging to Cyclostomata. The limbless amphibian is an Ichthyophis. The living fossil which belongs to the phylum arthropod is Limulus. Reptiles are air-breathing vertebrates surrounded or enclosed with special skin which is made up of scales, bony plates, or a combination of both. Some of the animals that include reptiles are crocodiles, snakes, lizards, turtles, and turtles. Everyone regularly sheds the outer layer of their skin. Their metabolism depends on the temperature of your surroundings.
The characteristics of Cyclostomata are the body is round and it is elongated like an eel. The paired fins are absent and with no paired appendages. The skin of Cyclostomata is soft and smooth with no scales and the spleen is absent. Amphibians are cold-blooded animals and they are carnivores. The breathing takes place through the skin. All coelenterates are aquatic, mainly marine. The shape of the body is radially symmetrical, diploblastic, and does not have a coelom. The only opening of the body, the hypostome is surrounded by sensory tentacles in order to catch planktonic prey.
So the correct answer is ‘Ichthyophis, Terrestrial, and Reptilia’.
Note: Lampreys are jawless fish which belong to the order Petromyzontiformes, and belong to the superclass Cyclostomata. The characteristics of adult lamprey are having a toothed and funnel-shaped sucking mouth. The common name "lamprey" is derived from the Latin lampetra, which can mean lick stone.