Final answer:
Microbiologists study microbes and their contributions are important to science because they contribute to understanding diseases and play a crucial role in research and development.
Step-by-step explanation:
Microbiologists are scientists who study microbes. They work in various fields including the food industry, veterinary and medical fields, and the pharmaceutical sector. Their contributions are important to science because they contribute to understanding diseases and play a crucial role in research and development, such as identifying new sources of antibiotics to treat bacterial infections.