Is the Campbell Biology In Focus textbook (AP edition) suitable for the USABO?
Same question please answer ^^^^^^^^^^^
I checked another thread for an answer and personally compared the two editions to double-check.
Biology in Focus isn’t detailed enough 
too few examples, not enough elaboration on almost every topic, almost skips out on gastrulation, the works.
For future examinees: read Campbell and Reece instead of investing time in Biology in Focus!