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15 lip 2021 · Of these 212,198 students, 1 student achieved a perfect score from all professors/readers on all free-response questions and correctly answered every multiple-choice question, resulting in the rare and impressive feat of earning all 120 of 120 points possible on an AP Biology Exam.
Download free-response questions from past AP Biology exams, along with scoring guidelines, sample responses from exam takers, and scoring distributions.
College board doubled the percent of 5s this year to compensate for their finding that AP bio students outperformed college students on the AP
AP® Biology 2022 Scoring Guidelines Question 3: Scientific Investigation 4 points Fireflies emit light when the enzyme luciferase catalyzes a reaction in which its substrate, D-luciferin, reacts to form oxyluciferin and other products (Figure 1). In order to determine the optimal temperature for this
Review archived AP Exam reports detailing student participation and performance data by each administration year.
See how all AP students performed on the most recent exams. The score distribution tables on this page show the percentages of 1s, 2s, 3s, 4s, and 5s for each AP subject.
plants in these ecosystems respond to compounds in smoke that regulate seed germination after a major fire. Karrikins (KAR) and trimethylbutenolides (TMB) are water-soluble compounds found in smoke that are deposited in the soil as a result of a fire. KAR and TMB bind to receptor proteins in a seed. In a study on the
