Toefl Junior Reading Comprehension Practice Test Pdf 2021 Here
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.
These warnings are hierarchical. Older, more experienced foragers are more likely to produce vibration signals than younger nurses. Furthermore, the frequency of the signal increases when the predator is a giant hornet (which can destroy a hive in hours) versus a small wasp. This suggests that honeybees can assess threat levels and adjust their communication accordingly. 1. What is the main purpose of the passage? (A) To describe how honeybees mate (B) To explain two types of honeybee communication (C) To warn readers about giant hornets (D) To compare worker bees to drones toefl junior reading comprehension practice test pdf 2021
While the Educational Testing Service (ETS) frequently updates its question pools, the 2021 edition remains a gold standard for practice. Why? Because between 2020 and 2022, the TOEFL Junior underwent subtle refinements in its reading section—specifically increasing the number of academic texts and reducing purely social language questions. In 2021, researchers at the University of Tokyo