In 2003, the FDA approved generic gabapentin, and it's now made by several drug companies. An extended-release form of gabapentin is available under the brand name Horizant. In 2004, the drug maker Pfizer settled charges for marketing Neurontin for unapproved uses, and agreed to pay $430 million.
Although most diatoms are autotrophic, some heterotrophic or symbiotic species can be found in particular habitats. The living matter of each diatom is enclosed in a shell of silica that it secretes. These shells are marked by minute pores or depressions that allow the living organism access to its environment.iatom (dÄªËÉtÅmË, âtÅmË) [ key ], unicellular organism of the kingdom Protista, characterized by a silica shell of often intricate and beautiful sculpturing. Most diatoms exist singly, although some join to form colonies.
*do not move. *autotrophic. *examples-multicellular algae, mosses, ferns, flowering plants (dandelions, roses, etc.), trees, etc. KINGDOM ANIMALIA (animals) -. *multicellular. *have nuclei. *do move. *heterotrophic. *examples-sponge, jellyfish, insect, fish, frog, bird, man. Print this page in Adobe Acrobat format.no true nucleus-prokaryote (genetic material scattered and not enclosed by a membrane). *some move (flagellum); others don't. *some make their own food (autotrophic); others can't make their own food (heterotrophic). *examples-bacteria, blue-green bacteria (cyanobacteria).