Extrusion in biology refers to the process by which cells or substances are expelled from a structure or organism. This can occur in various biological contexts, such as during the secretion of substances from cells, the elimination of waste materials, or the movement of specific components through membranes.
For instance, in the context of cellular biology, extrusion can describe how certain cells push out or release substances such as hormones, enzymes, or waste products. This process is vital for maintaining cellular homeostasis and enabling communication between cells.
In evolutionary biology, extrusion might also refer to the way organisms adapt by pushing out or eliminating certain traits over generations, allowing for the survival of the most beneficial characteristics in a given environment.
Overall, extrusion encapsulates a fundamental aspect of biological processes that ensures proper function and adaptation in living organisms.