I am just wondering how you feel about Chad's biology videos and quizzes.
I have been reading cliff's AP biology and it is hard for me to stay awake!
His chem videos have been helpful and I am wondering about the biology part!
Let me know!!
I have been reading cliff's AP biology and it is hard for me to stay awake!
His chem videos have been helpful and I am wondering about the biology part!
Let me know!!