The modern classification system recognizes five kingdoms. In one microscopic technique, a fluorescent dye is chemically joined to antibodies, and these tagged antibodies are mixed with an unknown organism. They are then observed in the fluorescent microscope.
Immersion oil is used with the light microscope because it has a similar to that of glass.
A researcher has just isolated a small bacterium. It is a rod-shaped cell and appears to cause a disease that is transmitted by arthropods. The bacterium will multiply only within a host cell. Part 18, The rickettsias 16. The algal cells contain organelles in which photosynthesis takes place.