A third level can be defined to identify a particular host server at the Internet address. In our example, www is the name of the server that handles Internet requests. (A second server might be called www2.) A third level of domain name is not required.
Sea anemones are a group of water-dwelling, predatory animals of the order Actiniaria. They are named for the anemone, a terrestrial flower.Sea anemones are classified in the phylum Cnidaria, class Anthozoa, subclass Hexacorallia. sea anemone is a sessile polyp attached at the bottom to the surface beneath it by an adhesive foot, called a basal disc, with a column-shaped body ending in an oral disc.
He is a sponge because one aquatic animal is called a sea sponge. However, sea sponges do not look like a square kitchen sponge, but have a more rounded shape. Aquatic animals are animals that live in the water. They either live in fresh water, such as lakes, rivers, and ponds, or salt water, like the ocean. Most people only think of fish when asked about aquatic animals.