microorganisms: (singular: bacterium) One-celled organisms. These dwell approximately everywhere on Earth, from the base of the sea to within other residing organisms (these types of as vegetation and animals). Bacteria are a single of the 3 domains of existence on Earth.
battery: A unit that can transform chemical electrical power into electrical power.
cell: The smallest structural and practical device of an organism. Commonly far too tiny to see with the unaided eye, it consists of a watery fluid surrounded by a membrane or wall. Most organisms, such as yeasts, molds, micro organism and some algae, are