| Microbes |
| Low life? |
| Protozoans |
| Protean ones |
| Tiny dividers |
| Low life forms |
| Minute animals |
| Bio 101 studies |
| Slide creatures |
| Shape shifters? |
| Sights on slides |
| Pseudopod formers |
| One-celled animals |
| Biology lab topics |
| Tiny shape-shifters |
| One-celled creatures |
| One-celled organisms |
| Unicellular swimmers |
| Microscopic creatures |
| Little blobs on slides |
| Microscopic shape-shifters |
| Frequent "Far Side" figures |
| They multiply with division |
| They're often seen on slides |
| They haven't any definite forms |
| They're often under the microscope |
| Ones moving with the aid of pseudopods |