Straighterline Biology Book - edition?

[bjcheung77]

The book should be fine, there aren't that many differences in each edition a year or two apart.
The final is not open book anyways, so it really wouldn't matter which version you're using.
Note: Same for Microbiology and the other sciences, if you're using an older version, it will work just fine.

For open book final exams at Straighterline, you have to be using the same version/edition as the course.
Otherwise, you are not supposed to be using a different version during the open book final.
If your son is going for it, I suggest using the current version you've got already.