Overview
The three domains of life—Bacteria, Archaea, and Eukarya—represent the fundamental categories of all living organisms. Each domain has unique characteristics that define its members, such as cellular structure and genetic makeup. Bacteria are simple, single-celled organisms, while Archaea are simila...
Key Terms
Example: E. coli is a common type of bacteria.
Example: Methanogens are a type of archaea that produce methane.
Example: Humans and trees are eukaryotic organisms.
Example: Bacterial cells have a simple structure compared to eukaryotic cells.
Example: Photosynthesis is a metabolic process in plants.
Example: Animals and plants are multicellular.