Final answer:
To prevent unwanted microorganisms from contaminating a lab, scientists need to use sterile technique, which involves taking precautions to maintain a sterile environment.
Step-by-step explanation:
To prevent unwanted microorganisms from contaminating a lab, scientists need to use sterile technique. Sterile technique involves taking precautions to create and maintain a sterile environment in the lab to prevent the introduction of any microorganisms that could affect the accuracy and reliability of experiments. This can include using sterile equipment, wearing gloves and a lab coat, disinfecting surfaces, and properly disposing of waste.
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