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← Nature & AnimalsWhich behavior is impaired when anosmia affects salmon?
A)Home stream natal navigation✓
B)Decreased predator avoidance scans
C)Compromised immune system responses
D)Accelerated growth rate and maturation
💡 Explanation
Olfactory cues are critical for natal stream navigation via olfactory imprinting; anosmia disrupts this ability because salmon imprint on unique chemical signatures of their home stream. Therefore, impaired olfactory function eliminates the reference point, rather than immune response or growth.
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