| ACROSS | DOWN |
| 1 Bacteria that lack a cell wall | 2 Gram negative enteric bacilli |
| 3 Gram positive circular bacteria | 4 Obligate anaerobic bacilli |
| 8 Gram positive facultative anaerobes | 5 Gram negative pleomorphic bacteria |
| 6 Gram positive microaerophilic bacteria | |
| 7 Microaerophilic spirochete |