| 1. | Malarial parasite | 2. | Filaria worm |
| 3. | Liver fluke | 4. | Tape worm |
| Group of protozoans | Example | ||
| A. | Amoeboid | P. | Entamoeba |
| B. | Flagellated | Q. | Paramecium |
| C. | Ciliated | R. | Trypanosoma |
| D. | Sporozoan | S. | Plasmodium |
| A | B | C | D | |
| 1. | Q | S | P | R |
| 2. | S | Q | R | P |
| 3. | P | R | Q | S |
| 4. | R | P | S | Q |