Answer: epigene

AnswerCrossword Clue
EPIGENEForeign.
EPIGENEProduced at the surface of the earth.
EPIGENEFormed on the surface of the earth.
EPIGENEFormed on the earth's surface.
EPIGENEFormed on earth's surface.
epigeneformed or originating on the earth's surface
epigenetaking place near the earth's surface