Climate change presents a multifaceted threat to global biodiversity, extending far beyond the direct impact of individual species extinctions. Rising temperatures, altered precipitation patterns, and extreme weather events disrupt intricate ecological balances, forcing species to migrate, adapt, or perish. This creates cascading effects: changes in one species' population or range can profoundly affect its predators, prey, or symbiotic partners, unraveling food webs and ecosystem functions. For instance, ocean acidification, a direct consequence of increased atmospheric CO2, impairs the ability of marine organisms to form shells, impacting entire coral reef ecosystems that provide habitat for countless species. The true danger lies in these systemic disruptions, which diminish ecosystem resilience and compromise the vital services they provide, from pollination to water purification, posing a significant risk to human well-being.
Which of the following best summarizes the passage?
Correct: C
Option C provides the most comprehensive and accurate summary. It captures the 'multifaceted threat,' the disruption of 'intricate ecological balances,' the 'cascading effects across ecosystems,' the reduction in 'resilience,' and the ultimate impact on 'human well-being.' Option A is incorrect because the passage explicitly states the threat 'extending far beyond the direct impact of individual species extinctions.' Option B is too specific, focusing only on ocean acidification and coral reefs as the 'most significant threat.' Option D describes a consequence (migration/adaptation and loss of services) rather than the full, systemic nature of the threat.