biology document

May 12th, 2015
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AP Biology2014 Free-Response Questions 2014 The College Board. College Board, Advanced Placement Program, AP, AP Central, and the acorn logoare registered trademarks of the College Board.Visit the College Board on the Web: Central is the official online home for the AP Program: AP BIOLOGY FREE-RESPONSE QUESTIONSBIOLOGYSection II8 QuestionsPlanning Time------10 minutesWriting Time------80 minutesDirections: Questions 1 and 2 are long free-response questions that require about 22 minutes each to answer and areworth 10 points each. Questions 38 are short free-response questions that require about 6 minutes each to answer.Questions 35 are worth 4 points each and questions 68 are worth 3 points each.Read each question carefully and completely. Write your response in the space provided for each question. Onlymaterial written in the space provided will be scored. Answers must be written out in paragraph form. Outlines,bulleted lists, or diagrams alone are not acceptable.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 oftrichomes on the stems of six plants in each of three different populations. The student u

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