Pheromones are found in

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Q: 80 (RAS/2011)
Pheromones are found in—

question_subject: 

Science

question_exam: 

RAS

stats: 

0,13,11,13,4,5,2

keywords: 

{'pheromones': [1, 0, 0, 1], 'insects': [1, 0, 1, 2], 'bats': [1, 0, 0, 5], 'snakes': [1, 0, 1, 0], 'birds': [5, 0, 1, 1]}