Background. A food chain is a simplified way to show the relationship of organisms that feed on each other. Itâs helpful to classify animals in a simple food chain by what they eat, or where they get their energy. Green plants, called producers, form the basis of the aquatic food chain.t the base of the aquatic food web are: 1  Plankton Plankton are microscopic plants and animals whose movements are largely dependent upon currents. 2  Phytoplankton Plant plankton are called phytoplankton and may be single cells or colonies. 3  Zooplankton Animal plankton are called zooplankton.
GxP is a general term for good (anything...) practice quality guidelines and regulations. These guidelines are used in many fields, including the pharmaceutical and food industries. The titles of these good practice guidelines usually begin with good and ends in practice, with the specific practice descriptor in between.
GlaxoSmithKline plc (GSK) is a British pharmaceutical company headquartered in Brentford, London. Established in 2000 by a merger of Glaxo Wellcome and SmithKline Beecham, GSK was the world's sixth largest pharmaceutical company as of 2015, after Pfizer, Novartis, Merck, Hoffmann-La Roche and Sanofi. Andrew Witty has been the chief executive officer since 2008.