To comply with the federal No Child Left Behind (NCLB) Act of 2001, Mississippi administers standardized tests to students beginning in 3rd grade through high school.
autotrophs An autotroph (from the Greek autos = self and trophe = nutrition) is an organism that produces organic compounds from carbon dioxide as a carbon source, using either light or reactions of inorganic chemical compounds, as a source of energy. An autotroph is known as a producer in a food chain. Plants and other organisms that carry out photosynthesis are phototrophs (or photoautotrophs). Bacteria that utilize the oxidation of inorganic compounds such as hydrogen sulfide, ammonium or ferrous iron as an energy source are chemoautotrophs. Aloha. Source(s): http://www.amnh.org/nationalcenter/exped...
Organisms that produce their own food are called producers. These producers are part of the biotic factors in an ecosystem. Green plants and bacteria can fall under this category. These organisms create their own food through photosynthesis. They are the basis for most ecological systems. Without producers, consumers like humans, would not have the food or energy they need to survive. These plants use the sunlight to make energy to fuel their functions. These plants also produce oxygen for other organisms to use.