CLEP Biology Practice Test 1

Answer all 115 questions in 90 minutes. Every question has one best answer chosen from five options (A--E). Questions are drawn proportionally from Molecular and Cellular Biology (about 33%), Organismal Biology (about 34%), and Population Biology (about 33%), matching the official CLEP Biology exam content breakdown. Several questions share a common diagram, data table, or experimental description presented immediately before the questions that reference it; read each stimulus carefully before answering. No calculator is needed or permitted. This independently written practice test is not an official CLEP form and is not endorsed by or affiliated with the College Board.