An IP Gateway is needed to provide the communications between your computer and the World Wide Web. A Network Switch can send the data, or packets, to the intended computer because of the capabilities of an IP Gateway Router.
What is a Sea Flea? There is much confusion about what people mean when they refer to a sea flea. While there is a marine creature of the Leptostraca family found in the waters around Australia that is called a sea flea, more often the term is actually used to describe the jellyfish larvae that can make sea bathers break out is a rash.
Daphnia pulex is the most common species of the water flea, an organism which can be found in almost every permanent, eutrophic (nutrient-rich) water body. A few species are marine, but generally Daphnia, including Daphnia pulex, are freshwater organisms.1  Biogeographic Regions. 2  nearctic.3  native.aphnia pulex is the most common species of the group of organisms known as water fleas. Their common name was given because of their general appearance and jerky swimming motions which resembles that of the land flea.