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...
Autotrophs (also called producers) can form their own food either by using sunlight and photosynthesis (phototrophs) or by obtaining chemical energy through oxidation (chemotrophs). For the most part, autotrophs often make their own food by using sunlight, carbon dioxide, and water to form sugars which they can use for energy. Some examples of autotrophs include plants, algae, and even some bacteria. Autotrophs are important because they are a food source for heterotrophs (consumers).