| LIST I (Anatomy term) | LIST II (Definition) | ||
| A. | Bone | I. | A fibrous protein |
| B. | Collogen | II. | Mature bone cell |
| C. | Osteocyte | III. | Blood cell production |
| D. | Marrow | IV. | Mineralized connective tissue |
| LIST I (Microbe) | LIST II (Natural habitat) | ||
| A. | Streptomyces | I. | Aquatic habitat |
| B. | Influenza virus | II. | Terrestrial Environment |
| C. | Spirulina | III. | Sewage treatment |
| D. | Giardia | IV. | Airborne pathogen |