Toefl Junior Reading Comprehension Practice Test Pdf 2021 Info

(A) The queen (B) The drones (C) The worker bees (D) The hornets

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In 2021, researchers at the University of Tokyo discovered that worker bees use a sophisticated "vibration signal" to communicate danger. When a hornet approaches, a worker will vibrate her abdomen against another bee. This signal, lasting less than one second, prompts the receiver to stop foraging and hide inside the hive. Unlike the famous "waggle dance," which directs bees to food, the vibration signal is purely a warning. (A) The queen (B) The drones (C) The

(A) It warns bees about predators. (B) It tells bees where to find food. (C) It is used only by the queen. (D) It was discovered in 2021. This signal, lasting less than one second, prompts