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NEW TPO 1 Why does the speaker mention eviornmental factors like pesticides?

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[00:01.00](N) Listen to a talk on a science podcast. 
[00:02.00](W-Am) Today's topic is the intriguing behavior of honeybees and their communication methods within the hive. Honeybees are known for their complex social structure and efficiency in gathering resources. One of the most fascinating aspects of their behavior is the "waggle dance." This dance is used by worker bees to convey information about the location of food sources to other members of the hive. When a bee discovers a rich source of nectar, it returns to the hive and performs the waggle dance on the vertical surface of the honeycomb. The dance involves a figure-eight movement and a waggle phase, during which the bee vibrates its body. The duration and angle of the waggle phase relative to the hive's vertical axis communicate the distance and direction of the food source.
[00:03.00]The waggle dance is a remarkable example of symbolic communication in insects. It allows the hive to efficiently gather food and is crucial for the colony's survival. Understanding the waggle dance has also provided insights into how bees navigate and the importance of environmental cues in their foraging behavior.
[00:04.00]However, studies have shown that environmental factors like the presence of pesticides can disrupt these communication methods, leading to less efficient foraging and potentially threatening the colony's health. The study of honeybee communication underscores the delicate balance of natural ecosystems and highlights the impact of human activities on these intricate systems.

3.Why does the speaker mention eviornmental factors like pesticides?

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原文:However, studies have shown that environmental factors like the presence of pesticides can disrupt these communication methods, leading to less efficient foraging and potentially threatening the colony’s health. 考点:转折,观点+例子,因果,对比;信号词:however,environmental factors like,leading to,less efficient;A答案;B未提;C无关;D无关

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