Life: The Science of Biology 12e Student Resources is no longer available and it was replaced by Biology and Life Sciences.
Media Clip 24.2: A Swarm of Salmonella
This video shows cells of Salmonella typhimurium elongating and moving over the surface of an agar plate in a coordinated manner.
Textbook Reference: Key Concept 24.2 Prokaryotic Diversity Reflects the Ancient Origins of Life