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and for one subjects is it required? and when should i take them??Im going to take several AP courses...so i was just wondering...that in my junior and senior year i am going to have to take AP exa...
i need to know
What is the importance of Surface Area to volume ratio in cells? in organisms?I was absent when the teacher explained this, and now i have to write a report and i cant understand the concept.
a- open a window quick
or
b- take a sniff first.