200 A Industrial fuse. 80 kA breaking capacity. In electronics and electrical engineering, a fuse is an electrical safety device that operates to provide overcurrent protection of an electrical circuit including the source of power and the load.
In order for natural selection to operate on a trait, the trait must possess heritable variation and must confer an advantage in the competition for resources. If one of these requirements does not occur, then the trait does not experience natural selection.
Natural selection on single-gene traits can lead to changes in allele frequencies and thus to evolution Natural selection on polygenic traits can affect the distributions of phenotypes in any of three ways: directional selection, stabilizing selection, or disruptive selection.