Role of Pheromones in Alarm Spreading

Hormones and Pheromones (UPSC 2021, 8 Marks, )

हार्मोन और फेरोमोन (Hormones and Pheromones)
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Pheromones in alarm spreading. (UPSC 2019, 10 Marks, )

अलार्म फैलाने में फेरोमोन। (Pheromones in alarm spreading.)
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Explain the role of chemical signals in alarm spreading. (UPSC 2017, 10 Marks, )

रासायनिक संकेतों की भूमिका को अलार्म फैलाने में समझाएं। (Explain the role of chemical signals in alarm spreading.)
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What are pheromones? Discuss their role in insects. (UPSC 2021, 15 Marks, )

फेरोमोन क्या होते हैं? कीड़ों में उनकी भूमिका पर चर्चा करें। (What are pheromones? Discuss their role in insects.)
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Explain the role of pheromones in alarm spreading. (UPSC 2015, 10 Marks, )

फेरोमोन के अलार्म फैलाने में भूमिका को समझाएं। (Explain the role of pheromones in alarm spreading.)
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Explain the role of pheromones in alarm spreading. (UPSC 2015, 10 Marks, )

फेरोमोन के अलार्म फैलाने में भूमिका को समझाएं। (Explain the role of pheromones in alarm spreading.)
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Differentiate between pheromones and hormones. How do they help in communication and behaviour? (UPSC 2012, 12 Marks, )

फेरोमोन और हार्मोन के बीच अंतर करें। वे संचार और व्यवहार में कैसे मदद करते हैं? (Differentiate between pheromones and hormones. How do they help in communication and behaviour?)
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Pheromones (UPSC 2005, 20 Marks, )

फेरोमोन (Pheromones)
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Pheromones and their role in alarm signaling. (UPSC 2004, 20 Marks, )

फेरोमोन और अलार्म संकेत में उनकी भूमिका। (Pheromones and their role in alarm signaling.)
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What are pheromones? Classify them and add a note on the various ways in which they are used. (UPSC 2000, 60 Marks, )

फेरोमोन क्या हैं? उनका वर्गीकरण करें और उनके उपयोग के विभिन्न तरीकों पर एक नोट जोड़ें। (What are pheromones? Classify them and add a note on the various ways in which they are used.)
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Giving suitable example, discuss the influence of pheromones on animal behaviors. (UPSC 1999, 60 Marks, )

उचित उदाहरण देते हुए, पशुओं के व्यवहार पर फेरोमोन के प्रभाव पर चर्चा करें। (Giving suitable example, discuss the influence of pheromones on animal behaviors.)
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Pheromones. (UPSC 1998, 20 Marks, )

फेरोमोन (Pheromones)
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