alarm pheromone

例句：

1. 1. The beesuse the alarm pheromone tocommunicate with each other.
   蜜蜂使用警报信息素来彼此沟通。
2. 2. The scent of thealarm pheromone is strong enoughto warn predators of the presenceof prey.
   警报信息素的气味足够强烈，足以警告捕食者猎物的存在。
3. 3. Researchers have discovered that certain insectsproduce alarm pheromones in responseto danger.
   研究人员发现某些昆虫在面对危险时会产生警报信息素。