| An organism is considered metameric when its body is mostly formed of serially repeated anatomical units called metameres. |
| Ciguatera poison is made by a microscopic organism that attaches itself to algae growing in the warm waters of coral reefs. |
| Diagnosis is based on clinical and neurophysiological findings, serology, and by identifying the organism or toxin. |
| The plasmodium of the true slime mold Physarum polycephalum is a multinucleate organism not subdivided into cells. |
| In 2000, the organism was cultured in human fibroblast cell line by centrifugation shell vial technique. |
| The organism may have extended a filtering organ out of the single opening as a modern serpulid does from its tube. |
