Final answer:
Fluorescence microscopy is a popular scanning technique that uses fluorochromes and long-wavelength light to visualize biological structures and processes.
Step-by-step explanation:
Fluorescence microscopy is a popular and easily detectable scanning technique.
It uses fluorochromes and long-wavelength light (such as infrared) to penetrate deep into thick specimens, like biofilms. This technique allows researchers to visualize and study biological structures and processes.