An organism that makes its own food
autotroph
An autotroph, usually a photosynthetic organism. Collectively, autotrophs make up the trophic level of an ecosystem that ultimately supports all other levels.
primary producer
A process plants use to turn sunlight into food
photosynthesis
Process by which some organisms, such as certain bacteria, use chemical energy to produce carbohydrates
chemosynthesis
An organism that cannot make its own food
heterotroph
An organism that eats other organisms
consumer
An animal that eats other animals
carnivore
An animal that eats only plants
herbivore
A carnivore that feeds on the bodies of dead organisms.
scavenger
An organism that breaks down wastes and dead organisms
decomposer
