Generally, if the entire tube is turbid, this indicates that the bacteria have moved away from the stab mark (are motile). The organisms in the two tubes pictured on the right are motile. If, however, ...

For a long time, almost all attention was on the motile cilia because their function was readily observable. But scientists, starting with Alexander Kowalevsky had reported the presence of single ...

Finding life in outer space is one of the great endeavors of humankind. One approach is to find motile microorganisms that can move independently, an ...

Each sperm cell, or spermatozoon, is small and motile. The spermatozoon has a flagellum, which is a tail-shaped structure that allows the cell to propel and move. In contrast, each egg cell ...