Most biology courses nowadays start with an introduction to chemistry, and our online biology text is no exception. You already had an introduction to chemistry last year so some of this might be review.
Start with some Chemistry of Life flashcards
Then play Scatter. Then try the test.
(Put your score in the combox -- if it was less than 85% try the test again)
Go on to next section.
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Put your initials or something here when you have finished the lesson.