Associate Certified Entomologist (ACE) Practice Exam

What is the importance of Petri dishes in entomological studies?

1. They help identify insect species

2. They are used for storing and transporting samples

3. They repel insects from entrances

4. They are used for trapping pests

The correct answer is: They are used for storing and transporting samples

Petri dishes play a critical role in entomological studies, particularly in the context of sample collection and management. They serve as a controlled environment for storing and transporting insect specimens, preventing contamination and preserving the physical integrity of the samples. This aspect is particularly important for entomologists who must observe and analyze insects under specific conditions or experiment with their behaviors and responses in a controlled setting. While other options mention important uses of different tools and methods in entomology, they do not accurately reflect the primary function of Petri dishes. Identification processes usually involve more specialized equipment or techniques, while trapping pests typically involves traps designed explicitly for that purpose. The idea of repelling insects does not align with the function of Petri dishes, which are not designed for such applications. Therefore, the choice highlighting the storage and transport provided by Petri dishes accurately reflects their significance in entomological research.