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← Nature & AnimalsWhich mating outcome change occurs when male songbird vocalizations decrease in frequency?
A)Reduced predator detection capability results
B)Decreased stimulation of female hypothalamus✓
C)Increased accuracy avoiding sonic interference,
D)Expanded auditory territory defense response
💡 Explanation
Decreased vocalization frequency reduces auditory stimulation via neural pathways. This disruption reduces Hypothalamic-Pituitary-Gonadal axis activation, because reduced HPG axis stimulation impairs readiness to mate. Therefore option B occurs, rather than alternatives of sonic avoidance and predator warning which arise instead from higher rates of vocalization.
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