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← Nature & AnimalsWhich outcome results when a nocturnal migrating bird's 'celestial' clock drifts when cloudy?
A)Compensatory magnetic sense takes over
B)Navigation uses solely olfactory gradients
C)Migration direction becomes partially randomized✓
D)Foraging efficiency shows rapid adaptation
💡 Explanation
Innate celestial navigation relies on identifying stellar patterns, but its integration with internal body rhythms defines direction; disrupted alignment during cloudy shifts uses sun-clock misalignment in their navigational decisions, therefore skewing headings randomly rather than maintaining optimal direction using magnetic senses or olfaction solely.
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