Dear Juniors, As we prepare for the upcoming biology keystone we are all tense. Take a breath and stay calm, it is a lot of information to remember but you will get through it because we have preparing for this for 2 years and now it is time to show why we past those standards and quizzes. The information that is in this study guide is short summaries of all the information you have learned, we got this! WE WILL PASS THIS TEST Sincerely, Asa and Jahdiyyah your fellow classmates