Large areas:

קליל

האזור גדול אז כל התשובות נכנסות בו

Large areas → “all of the above”: the long version, dressed in black.🖤 A tract of landscape that sprawls beyond the horizon does three things simultaneously—none of them optional. First, it samples more of nature’s random walk: hills plus gullies, south-facing scree plus dank ravines, volcanic soil next to alluvial fluff. That sheer spatial lottery breeds heterogeneity the way Las Vegas breeds neon. Second, because heterogeneity is just a posh word for “lots of different environmental niches bolted together,” a large area automatically stockpiles habitats—micro-climates, edaphic quirks, hydrological oddities—each one an invitation card to a different guild of organisms. Finally, with niches and habitats multiplying, species richness rises almost as a mathematical corollary: every extra square-kilometre both lowers extinction risk (bigger populations, shallower genetic drift) and raises colonisation odds (more real estate touches more dispersal corridors). The classic species–area curve (S = cAᶻ) quantifies the inevitability: double the area, and you get roughly 10-25 % more species, even before evolutionary novelty begins its slow simmer. Hence exam setters, weary of nuance, bundle the whole causal chain into the catch-all “All of the above”—and, for once, they’re not wrong.