Science / Marine Biology / Autotroph: An organism that synthesizes organic molecules from inorganic starting materials through photosynthesis or chemosynthesis. Autotrophs are ecologically important as primary producers as they ultimately provide energy for all heterotrophic organisms. See also chemosynthesis, photosynthesis; compare heteroptroph.
Science / Biology / Autotrophic: Refers to organisms that synthesize their nutrients and obtain their energy from inorganic raw materials. MORE
Science / Biology / Autotrophs: Organisms that synthesize their own nutrients; include some bacteria that are able to synthesize organic molecules from simpler inorganic compounds. MORE