Question

copyright © mcgraw hill llc permission required for reproduction or display. multiple choice question this image was obtained through the use of ______ microscopy. electron fluorescence phase - contrast dark - field (b) volvox

Explanation:

The image shows bright, glowing green structures (Volvox algae) against a dark background, which is a hallmark of fluorescence microscopy. This technique uses fluorophores (natural or artificial) that emit light when excited, producing this distinct luminous appearance. Electron microscopy produces high-resolution black-and-white images of ultra-small structures, phase-contrast enhances subtle density differences without bright fluorescent color, and dark-field shows light scattered by specimens as bright outlines, not the solid glowing color seen here.

Answer:

O fluorescence