題組內容

第 47 至 50 題為題組
        Many animals are known to live and move in groups to secure food and avoid predators. Over the years, people have been curious about the way they deal with disturbances arising from the environment, and the operations underlying their responses as a group. Studies on jackdaws and turtle ants may provide some insights into the issue. 65b99a41da8b2.jpg

50. What is the “disturbance” for jackdaws mentioned in the passage?(簡答,2分)
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