Hi!
I am trying to study for the USABO, which I am planning to take February 2019. I found this page on Khan Academy, and I want to know if it is enough to learn all the microscopic biology needed for the exam.
I will also study anatomy of plants and animals using a Modern Biology (Holt, Rinehart, and Winston) - https://www.amazon.com/Modern-Biology-RINEHART-WINSTON-HOLT/dp/0030367697/ref=sr_1_2?s=books&ie=UTF8&qid=1516313095&sr=1-2&keywords=Holt%2C+Rinehart+and+Winston%3A+Modern+Biology
It would be great if somebody could tell me if the recources I am using are sufficient.
Thanks!