Final answer:
A wet specimen is a preparation method in biology where a specimen is placed on a glass slide with a small drop of water. BJ used a wet specimen to examine the sample from Cindy's wound and identify bacteria.
Step-by-step explanation:
A wet specimen is a type of preparation method in biology where the specimen, such as a drop of liquid or a solid sample suspended in liquid, is placed on a glass slide with a small drop of water. A cover slip is then added to keep the specimen in place before it is viewed under a microscope. In the provided scenarios, BJ used the wet specimen method to examine the sample from Cindy's wound and identify any bacteria present. By creating a wet mount with the wound sample and using a brightfield microscope, BJ was able to observe and analyze the bacteria in the specimen.