| Hint | Respiratory Pigment | % Correct |
|---|---|---|
| Most Vertebrates | Red | 100%
|
| Spiders, Crustaceans, and Some Mollusks | Blue | 96%
|
| Many Annelids | Green | 96%
|
| Some Beetles, Tunicates, and Sea Cucumbers | Yellow | 88%
|
| Brachiopods, Priapulids, Sipunculids and Some Annelids | Purple | 80%
|
| Hemoglobin | 28%
| |
| Hemocyanin | 12%
| |
| Hemerythrin | 4%
| |
| Chlorocruorin | 0%
| |
| Hemovanadin | 0%
|