Cell isolation and culture are essential tools for the study of cell function. Isolated cells have several advantages that can't be replaced with whole animals or even tissue explants, such as growth under controlled conditions, being manipulated and imaged at a level of resolution. As an invertebrate model organism, Caenorhabditis elegans is widely used in genetic and developmental aspects due to its simple anatomy, invariant cell lineage, compact genome. Reference: C. elegans Isolation & Culture