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An important example is the process by which cells or organisms move in response to chemical signals in their environment, also known as chemotaxis.

Over the last century, how researchers understood cell migration was limited to the effects of biochemical signals, or chemotaxis, that direct a cell to move from one place to another.

They reach their destination by chemotaxis, following signals that lead them to the goal like a chemical yellow brick road.

Individual cells, whether cancer cells, skin cells, or single-celled organisms like bacteria, generally know where to go by sensing attractive chemicals in their environments and moving toward them, a process called chemotaxis.

The cells chased the attractant through a process called chemotaxis, expanding rapidly across the dish before the local nutrients were depleted, so that most of the population had the nutrients needed to grow.