1. And the activity of those phytoplankton and autotroph can even change the direction of DINS fluxes.

2. Other organisms, called heterotrophs, take in autotrophs as food to carry out functions necessary for their life.

3. Ecologists can broadly group all life forms into one of two trophic layers, the autotrophs and the heterotrophs.

4. As nouns the difference between Auxotroph and autotroph is that Auxotroph is any microorganism that has lost the ability to synthesize an organic compound required for its growth, usually as a result of mutation while autotroph is (biology) any organism that can synthesize its food from inorganic substances, using heat or light as a source of energy.

5. When autotrophs are eaten by heterotrophs, i.e., consumers such as animals, the carbohydrates, fats, and proteins contained in them become energy sources for the heterotrophs.

6. Iron-oxidizing autotrophs and acidophilic heterotrophs were quantified at an incubation temperature of 18 °C in several samples obtained from the bioleaching areas of two uranium mines in Ontario, Canada.

7. The base or basal species in a food web are those species without prey and can include autotrophs or saprophytic detritivores (i.e., the community of decomposers in soil, biofilms, and periphyton).