Adaptation
Inherited traits increasing organism fitness in specific environmental conditions through natural selection.
Real World
The Arctic fox grows a thick white coat in winter for insulation and camouflage, then moults to a thinner brown coat in summer — a structural adaptation shaped by extreme seasonal temperature variation in tundra environments.
Exam Focus
Classify adaptations as structural, physiological, or behavioural — then link each to a specific selection pressure for top marks.
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