Answer:
A pedigree is like a lineage or a recorded ancestry. For example, if a dog has recorded breeding papers it would show you it's pedigree. I hope that helped! :)
When someone contorted their face in disgust over a foul smell, frowns, widens their nose, stretches their mouth a little, seems to shrink the face, and close his eyes a little, for a few seconds the face changes completely obtaining an appearance of someone older.