|any modern theory of evolution holding that species evolve by natural selection acting on genetic variation|
|the compact area of a nerve cell that constitutes the nucleus and surrounding cytoplasm, excluding the axons and dendrites|
monophyletic mon·o·phy·let·ic (mŏn'ō-fī-lět'ĭk)
Descended or derived from one original stock or source.
Of or being the theory that all blood cells are derived from one common stem cell.