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← Nature & AnimalsWhich migration failure occurs when salmon encounter polluted streams?
A)Reduced geomagnetic field perception.
B)Impaired olfactory imprinting recognition.✓
C)Disrupted celestial navigation learning.
D)Increased resistance to parasitic infection.
💡 Explanation
Pollution disrupts salmon migration because olfactory imprinting recognition relies on specific chemical signatures. Pollution masks or overwhelms these signatures, therefore preventing salmon from effectively locating their home streams, rather than affecting geomagnetic or celestial cues.
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