AP Environmental Science Unit 2

Unit 2 keeps asking the same question in different costumes: when conditions change, who lives and who doesn't? The concept behind almost every answer is ecological tolerance — the range of conditions…

This is the part of Unit 2 where biodiversity stops being a list of definitions and turns into a prediction. A population crashes, and the question becomes what it actually lost, and whether it can ge…

Unit 2 is the part of AP Environmental Science where the exam stops asking you to define biodiversity and starts asking you to predict what happens to a population when something goes wrong. This epis…