Prokaryotes: Singled-celled organisms that lack a nucleus and are much smaller than most eukaryotic cells
Photoautotrophs: Organism that carries out photosynthesis in a manner similar to plants
Chemoautotroph: Obtain energy directly from inorganic molecules
Photoheterotroph: Organism that captures sunlight for energy and also needs organic molecules for nutrition
Chemoheterotroph: Organism that takes in organic molecules and then breaks them down
