Answer: It is a part of the rising action that shows a conflict between the dogs.
Explanation: Usually in a pack of dogs, there will be a fight for dominance. Spitz intruded Buck’s nest to show him that he was top dog, which would have been seen as a challenge to Buck, and it shows a battle will follow soon.
No, it might change their body chemistry or even mess with the DNA because of unusual chemicals in food.
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Black men are being victimized because of the accusation that they raped white women, but of this there is no history, it was a motive that was used to justify the lynching. That blacks were inferior to whites and therefore there was justification for this society as a whole to be overthrown. Also because they were becoming a primitive race.