THE SOLUTION:
FLESH > FRESH > FROSH > FROTH > BROTH > BOOTH > BOOTS > BOLTS > BOLES > BONES.
NOTES: “Frosh” is used collectively for freshmen (like “soph” is for sophomores). Shirley Booth was best known for her role as TV’s Hazel. Nancy Sinatra scored a hit single with the song “These Boots are Made for Walking.” The San Diego Chargers are nicknamed the “bolts” due to the lightning bolt emblem on their helmets.