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 is the foundation of the ocean food web. The word plankton comes from the Greek word  planktos  which means drifting. Zooplankton are ocean animals that don't swim at all or are very weak swimmers, and they drift or move with ocean currents. They can be found in the sunlit zone and in deep ocean waters. Zooplankton range in size from tiny microbes to jellyfish, although most zooplankton are tiny, single-celled organisms. There are two types of zooplankton.