In Nepal, universities have a chancellor as ceremonial head. The de facto head of the university is the vice-chancellor. The chancellor is primarily responsible for attending the convocation programmes and accepting the resignation and appointment letter of a new vice-chancellor.
Three main types of phytoplankton are: 1  Cyanobacteria (blue-green algae). 2  These are very small and difficult to study. 3  They may be found in large blooms - it is the color of a cyanobacteria that causes the name (and occasionally, color) of the Red Sea.
Phytoplankton are photosynthesizing microscopic organisms that inhabit the upper sunlit layer of almost all oceans and bodies of fresh water. They are agents for  primary production , the creation of organic compounds from carbon dioxide dissolved in the water, a process that sustains the aquatic food web.