AP Environmental Science — The Living World: Ecosystems

The Living World: Ecosystems is the first of 9 units in the College Board's current AP Environmental ScienceCourse & Exam Description. It opens the course and sets up The Living World: Biodiversity.

Our The Living World: Ecosystems set has 12 practice questions, each with a written explanation, a one-line key takeaway, and a rationale for every wrong choice — so you learn why the right answer is right and why each distractor is tempting. You can work them as a timed set or read the worked solutions straight through.