How is pertinacity used in Chapter 7 Call of The Wild?

In Chapter 7 of "The Call of the Wild," pertinacity is exemplified through Buck's unwavering determination to survive and thrive in the harsh conditions of the Yukon. Despite facing numerous challenges, including brutal weather and fierce competition, Buck's relentless spirit drives him to adapt and assert his dominance. This quality ultimately enables him to embrace his primal instincts and reclaim his place in the wild, highlighting the theme of resilience in the face of adversity.