摘要：下面整理的是AP生物学真题答案下载，大家如果需要历年AP考试真题、最新AP机经预测、AP备考书籍等资料，请关注小马过河官方网站AP栏目。
下面介绍的是AP生物学真题答案下载，建议大家下载完整版历年AP生物学(Biology)真题答案及解析PDF格式，小马过河祝大家都能取得优异成绩。
下面我们来对每道试题进行详细的解析：
1. In an investigation of fruit-fly behavior, a covered choice chamber is used to test whether the spatial distribution of flies is affected by the presence of a substance placed at one end of the chamber. To test the flies’ preference for glucose, 60 flies are introduced into the middle of the choice chamber at the insertion point indicated by the arrow in the figure above. A cotton ball soaked with a 10% glucose solution is placed at one end of the chamber, and a dry cotton ball with no solution is placed at the other end. The positions of flies are observed and recorded every minute for 10 minutes.
解析：这是free-response questions10分的一道大题，考生在对这类题目进行解答时，一定要仔细阅读题干信息，把握题干的基本要点，要对出题人的考查思路有一定的了解。该题是典型的开放性实验题目，出题人通过对问题的设置，突出对相关知识点以及实验科学的猜想设计、数据分析等能力的考查。
上面介绍的就是AP生物学真题答案下载，希望对大家有所帮助，如果想了解最新AP考试资讯，请关注小马过河AP频道，关于本文有任何疑问，请和在线老师老师联系。