In flow cytometry, cell subsets are labeled using a fluorescent antibody to a membrane protein. the fluorogen is activated by a(n) as the cells pass by the detectors.

is in the form atp or adenosine triphosphate

volcanoes (an event in the geosphere) release a large amount of particulate matter into the atmosphere. these particles serve as nuclei for the formation of water droplets (hydrosphere). rainfall (hydrosphere) often increases following an eruption, stimulating plant growth (biosphere).