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← Nature & AnimalsWhich outcome occurs in chameleon skin when iridophore crystal spacing changes?
A)Enhanced background matching by active camouflage✓
B)Increased oxygen absorption into deeper tissues
C)Decreased sensitivity to thermal radiation
D)Promotion of rapid muscular contraction rates
💡 Explanation
Chameleons adjust color through structural coloration via tunable photonic crystals; the **Bragg reflection** of light changes based on crystal spacing. This enhances camouflage because the perceived color actively matches background hues, rather than static pigmentation.
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