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← Nature & AnimalsWhich adjustment occurs when a bird's internal clock shifts relative to true sunset?
A)Orientation error during celestial navigation✓
B)Decreased food intake during migration
C)Enhanced predator avoidance in darkness
D)Increased melatonin synthesis responsiveness
💡 Explanation
Migratory birds use the setting sun for celestial navigation; a shifted internal clock causes a compass error because the bird misinterprets the sun's position relative to its destination, therefore resulting in disorientation rather than optimal direction finding using sun angle differences.
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