Which outcome occurs in chameleon skin when iridophore crystal spacing changes?

💡 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.

• Which outcome occurs for freshwater arctic fish when environmental temperatures significantly increase?
• Which outcome rapidly dissipates heat in pinnipeds resting on land at temperatures approaching their upper critical limit?
• Which consequence results when a solitary bird species occupies a habitat with significant artificial noise?
• Which outcome occurs when a grey seal undergoes prolonged diving in icy waters, inhibiting efficient oxygen delivery to vital organs?
• Which mechanism reduces swim bladder buoyancy control in deep-sea fish experiencing rapid ascent?
• Which risk increases when a bird's air sacs are compromised during high-altitude flight?