|Autotroph/Producer: | Chemoautotroph | Photoautotroph|
| Heterotroph/Consumer: | Primary Consumer | Secondary consumer | Tertiary consumer |
Herbivore | Carnivore | Omnivore | Decomposer
Photoautotrophs are a form of autotroph or primary producer that uses photosynthesis from sunlight as a source of energy for respiration and to fix organic carbon. Examples include the Cyanobacteria, photosynthetic eukarya, and green plants.