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Biology Practice Exam. From the 2013 Administration. This is a modified version of the 2013 AP Biology Exam. This practice exam is provided by the College Board for AP Exam preparation. Exams may not be posted on school or personal websites, nor electronically redistributed for any reason.
Download free-response questions from past AP Biology exams, along with scoring guidelines, sample responses from exam takers, and scoring distributions.
Practice Test 3 | 379 SECTION I: Multiple-Choice Questions The Exam AP® Biology Exam DO NOT OPEN THIS BOOKLET UNTIL YOU ARE TOLD TO DO SO. Instructions Section I of this examination contains 69 multiple-choice questions. These are broken down into Part A (63 multiple-choice questions) and Part B (6 grid-in questions).
What causes plants to wilt if they are not watered? I. BACKGROUND . lasm in order to maintain homeostasis. The movement is regulated because cellular membranes, including the plasma and organel.
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Three hours are allotted for this examination: 1 hour and 20 minutes for Section I, which consists of multiple-choice questions, and 1 hour and 40 minutes for Section II, which consists of essay questions.
Figure 1. Phylogenetic tree representing the evolutionary relatedness among bear populations based on mitochondrial DNA sequence comparisons. 1. Polar bears are highly adapted for life in cold climates around the North Pole. Brown bears, black bears, and pandas are found in warmer environments.
The AP Biology Exam is three hours in length and consists of a multiple-choice section and a free-response section. • The 80-minute multiple-choice section contains 100 questions and accounts for 60 percent of the final
