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Most cultivated spirulina is produced in open-channel raceway ponds, with paddle wheels used to agitate the water. [5] Spirulina thrives at a pH around 8.5 and above and a temperature around 30 °C (86 °F). They are autotrophic, meaning that they are able to make their own food, and do not need a living energy or organic carbon source.
The common name, spirulina, refers to the dried biomass of Arthrospira platensis, [3] a type of Cyanobacteria, which are oxygenic photosynthetic bacteria.These photosynthetic organisms were first considered to be algae, a very large and diverse group of eukaryotic organisms, until 1962 when they were reclassified as prokaryotes and named Cyanobacteria. [4]
Spirulina is a genus of cyanobacteria. It is not classed as algae , despite the common name of cyanobacteria being blue-green algae. Despite its name, the " spirulina " dietary supplement actually uses cyanobacteria belonging to the genus Arthrospira (which were formerly classified within Spirulina ) .
Oxygen concentrations in the atmosphere remained around or below 0.001% of today's level until 2.4 Ga ago (the Great Oxygenation Event). [178] The rise in oxygen may have caused a fall in the concentration of atmospheric methane, and triggered the Huronian glaciation from around 2.4 to 2.1 Ga ago. In this way, cyanobacteria may have killed off ...
The 2023–24 network television schedule for the five major English-language commercial broadcast networks in the United States covers the prime time hours from September 2023 to August 2024. The schedule is followed by a list per network of returning series, new series, and series canceled after the 2022–23 television season .
Spirulina major is a species of cyanobacteria in the family Spirulinaceae. [2] [1] It's found primarily in the Gulf of Mexico and sparsely on the shores of South America, Africa, Europe, the Middle East, and India. [3]
Broadcast programming is the practice of organizing or ordering (scheduling) of broadcast media shows, typically radio and television, in a daily, weekly, monthly, quarterly, or season-long schedule. Modern broadcasters use broadcast automation to regularly change the scheduling of their shows to build an audience for a new show, retain that ...
Today (also called The Today Show) is an American morning television show that airs weekdays from 7:00 a.m. to 11:00 a.m. on NBC.The program debuted on January 14, 1952. It was the first of its genre on American television and in the world, and after 73 years of broadcasting it is fifth on the list of longest-running American television serie