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2014 AP Biology生物真题系列之简答题免费下载

Category: AP课程, 国际课程, 福利干货 Date: 2018年9月8日下午3:13

历年AP Biology生物系列

真题与答案下载

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2014 AP Biology Free-Response Questions Free Download

2014 AP 生物简答题部分免费下载

此套题共计时1小时30分钟

共8题

每道大题可能含有不同数量的小题

可以使用简单的Four-function计算器（带有开平方功能）

考试时会提供相应的方程和等式列表

完整版下载链接见文末

部分真题预览：

1）Trichomes are hairlike outgrowths of the epidermis of plants that are thought to provide protection against beingeaten by herbivores (herbivory). In a certain plant species, stem trichome density is genetically determined.

To investigate variation in stem trichome density within the plant species, a student counted the number of trichomes on the stems of six plants in each of three different populations. The student used the data to calculate the mean trichome density (numbers of hairs per square centimeter) for each population. The results are providedin the table below.

TRICHOME DENSITY IN THREE PLANT POPULATIONS(number of trichomes/cm²)

2014国际课程AP Biology生物真题与答案下载

On the axes provided, create an appropriately labeled graph to illustrate the sample means of the three populations to within 95% confidence (i.e., sample mean ± 2 SEM).
Based on the sample means and standard errors of the means, identify the two populations that are most likely to have statistically significant differences in the mean stem trichome densities. Justify your response.
Describe the independent and dependent variables and a control treatment for an experiment to test the hypothesis that higher trichome density in plants is selected for in the presence of herbivores. Identify an appropriate duration of the experiment to ensure that natural selection is measured, and predict the experimental results that would support the hypothesis.