| A | B |
| Who is the sick dog who struggles to die in the traces? | Dave |
| Who is the first human killed by Buck? | The Chief of the Yeehats |
| Who is the good-natured Newfoundland killed in a fight? | Curly |
| Who is the laughing dog that Buck defeats for the lead spot? | Spitz |
| Who is the experienced sled dog who is blind in one eye? | Sol-leks |
| Who pities the dogs and secretly overfeeds them? | Mercedes |
| Who says, "As you love me, Buck"? | John Thornton |
| Who is fair to the dogs and cries when he sells Buck? | Francois |
| Who introduces Buck to the law of club and fang? | The man in the red sweater |
| Who is Buck's original owner? | Judge Miller |