Barnacle Barnacle A barnacle is a type of arthropod constituting the infraclass Cirripedia in the subphylum Crustacea, and is hence related to crabs and lobsters. Barnacles are exclusively marine, and tend to live in shallow and tidal waters, typically in erosive settings. They are sessile (nonmotile) suspension feeders, and have two nektonic (active swimming) larval stages. Around 1,220 barnacle species are currently known. The name "Cirripedia" is Latin, meaning "curl-footed". The study of barnacles is called cirripedology. Barnacles are encrusters, attaching themselves permanently to a hard substrate. The most common, "acorn barnacles" (Sessilia), are sessile, growing their shells directly onto the
What Kind of an American are You? found at Pritzker Military Museum & Library. The song urges Americans (specifically immigrants) to use this war to prove their loyalty to the United States; whether that may be by fighting or by simply standing behind the US's actions. For those who show no support, this question is posed: "What are you doing over here?" It upholds the "us-against-them" mentality; the "them" in this case is Germany. The chorus is as follows: What Kind of an American are You? What Kind of an American are you?, also known as What Kind of American are you?, is a World War I