| A | B |
|---|
| bacteria | microscopic prokaryotes most are beneficial to humans and to the environment, but a small percentage can cause disease |
| nucleiod | area in a prokaryotic cell that contains a large, circular chromosome |
| capsule | polysaccharide layer secreted around the cell wall by some prokaryotes that prevents the cell from drying out and helps the cell attach to environmental surfaces |
| pilus | hairlike, submicroscopic structure madew of protein that can help a bacterial cell attach to environmental surfaces and act as a bridge between cells |
| binary fission | asexual form of reproduction used by some prokaryotes in which a cell divides into two genetically identical cells |
| conjugation | form of reproduction used by some prokaryotes in which the prokaryotic cells attach to each other and exchange genetic material |
| endospore | dormant bacterial cell able to survive for long periods of time during extreme environmental conditions |
| halophile | salt like |
| prokaryotic cell | cell that does not contain any membrane-bound organelles |
