1) Genetic material
3) Individual bacteria may?
simple, single-celled organisms
1) genetic material not enclosed in a special nuclear membrane= prokaryotes, which include bacteria and archaea
2) Shapes: a. Bacillus (rodlike) b. Coccus (spherical or ovoid)c. Spiral (corkscrew or curved) d. Some can also be star-shaped or square
3) form pairs, chains, clusters, or other groups; but, these are characteristic of a particular genus or species of bacteria