When an object rests on a surface, such as a table, for example, the downward force it applies to the surface is counteracted by an equal but upwards force, or reaction, applied by the surface. See more at Newton's laws of motion. A response to a stimulus, such as a reflex.
State. Aquatic Invasive Species: Snakehead (PDF | 201 KB). Indiana Department of Natural Resources. Northern Snakehead. Maryland Department of Natural Resources. Northern Snakehead Fish (Channa argus). New York Department of Environmental Conservation.
Environmental effects of Snakeheads. The Snakehead species are not a natural part of the American ecosystem, and the first founding of wild Snakehead caused a lot of commotion.In May 2002, a fisher man caught a strange fish in Maryland, and handed over a photograph of it to a government office in Annapolis.nvironmental effects of Snakeheads. The Snakehead species are not a natural part of the American ecosystem, and the first founding of wild Snakehead caused a lot of commotion.