In other types of situations, the choice might be between a rule of national law and a rule of public international law, in which case the choice is made by an international tribunal or some nonjudicial decision-maker, such as an appointed body.ll the lawânational, international, or mixedâthat applies to all persons, businesses, and governments that perform or have influence across state lines.
Algae are producers. This means they produce their own energy, usually through photosynthesis. Like most producers, algae turn sunlight, carbon dioxide and water into glucose for energy.
1 They also act as food, providing energy for other organisms. 2  In the Great Lakes, most producers are phytoplankton, or microscopic floating plants. 3  An example of phytoplankton is green algae. 4  Large rooted plants, another type of producer, provide food and shelter for different organisms, fish and wildlife. Theyâre called producers, because they make their own food by converting sunlight through photosynthesis. 2  They also act as food, providing energy for other organisms. 3  In the Great Lakes, most producers are phytoplankton, or microscopic floating plants. 4  An example of phytoplankton is green algae.