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.
Three groups ofaquatic organisms include plankton, nekton, and benthos. Plankton are the organisms that float near the surface of the water. Two typesof plankton are microscopic plants called phytoplankton, and micro-scopic animals called zooplankton. Phytoplankton produce most ofthe food for an aquatic ecosystem. Nekton are free-swimming organ-isms, such as fish, turtles, and whales.