Explain the significance of each of the following presidential roles: chief executive, chief diplomat, and commander in chief. Chief Executive: President is vested by the constitution with the executive power, described as the most powerful office in the world.. Chief Diplomat: Main architect of American foreign policy and the nation's chief spokes person to the rest of the world. Commander in Chief: Director of the military, in charge of the nation's armed forces.
Home What is the scientific name for phytoplankton. The phytoplankton group encompasses a number of micro-organisms, including diatoms and dinoflagellates, which live in the ocean.As there are many species of phytoplankton, there are many scientifi...he phytoplankton group encompasses a number of micro-organisms, including diatoms and dinoflagellates, which live in the ocean. As there are many species of phytoplankton, there are many scientifi...
plankton. n. 1. (Biology) the organisms inhabiting the surface layer of a sea or lake, consisting of small drifting plants and animals, such as diatoms.Compare nekton. [C19: via German from Greek planktos wandering, from plazesthai to roam].lankton is a primary food source for many animals, and consists of bacteria, protozoans, certain algae, cnidarians, tiny crustaceans such as copepods, and many other organisms. Microscopic aquatic organisms that float near the surface of water.