Protoplast /(?)/

Pro·to·plast

Protoplast

n.
  1. The thing first formed; that of which there are subsequent copies or reproductions; the original.
  2. A first-formed organized body; the first individual, or pair of individuals, of a species. (Biol.)
    A species is a class of individuals, each of which is hypothetically considered to be the descendant of the same protoplast, or of the same pair of protoplasts.