| Rating | Solver | Clue |
|---|---|---|
| KIDNEYS | Renal organs | |
| NEPHRITICAL | Of or pertaining to the kidneys or urinary organs; renal; as, a nephritic disease. | |
| METANEPHROS | The most posterior of the three pairs of embryonic renal organs developed in many vertebrates. | |
| MESONEPHROS | The middle one of the three pairs of embryonic renal organs developed in most vertebrates; the Wolffian body. | |
| ZYGOBRANCHIA | ...ills are developed on both sides of the body and the renal organs are also paired. The abalone (Haliotis) and the keyhole limpet (Fissurella) ar... | |
| LEPTOCARDIA | ...e Amphioxus. The heart is represented only by a simple pulsating vessel. The blood is colorless; the brain, renal organs, and limbs are wanting,... | |