Bacteria are single-celled microorganisms that belong to the domain Bacteria. They are among the simplest and most abundant forms of life on Earth. Bacteria are
classified as prokaryotes, meaning they lack a true nucleus and membrane bound organelles. Instead, their genetic material is typically organized in a single, circular DNA
molecule located in the nucleoid region of the cell.
Domain: Bacteria
Cell Type: Prokaryotic
Cell Wall Composition: Peptidoglycan
Shapes: Cocci (spherical), Bacilli (rod-shaped), Spirilla (spiral-shaped)
Metabolism: Varied (aerobic, anaerobic, photosynthetic)
Habitats: Ubiquitous, found in diverse environments
