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← Nature & AnimalsWhich process results when salmon homing streams present disrupted olfactory cues?
A)Elevated ocean foraging success
B)Decreased natal stream spawning✓
C)Acceleration of smoltification timing
D)Enhanced predator avoidance behavior
💡 Explanation
Decreased natal stream spawning occurs because the olfactory imprinting guides migration, operating via chemoreception; therefore, without the natural stream scent, salmon fail to locate their birthplace, rather than exhibit any advantage.
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