The AP Biology exam has three main sections: molecules and cells, heredity and evolution, and organisms and populations. AP Biology is the most popular Advanced Placement course in the natural sciences. In 2016 over 238,000 students took the exam, and the mean score was 2.85. Most colleges and universities have a science and lab requirement, so a high score on the AP Biology exam will sometimes fulfill this requirement. The distribution of scores for the AP Biology exam is as follows (2016 data): 5 - 6.6%. 4 - 21.0%.
1. vitamin A2 - a viscous alcohol that is less active in mammals than is vitamin A1. dehydroretinol. antiophthalmic factor, axerophthol, vitamin A, A-any of several fat-soluble vitamins essential for normal vision; prevents night blindness or inflammation or dryness of the eyes.. (Biochemistry) a vitamin that occurs in the tissues of freshwater fish and has a function similar to that of vitamin A. Formula: C20H28O.
Vitamin B2, also known as riboflavin, is arguably the only vitamin that gives you a visual cue as to its passage through your body. When there is a lot of vitamin B2 in the diet (or in a supplement), your urine turns bright yellow to show you it is there.itamin B2, also known as riboflavin, is arguably the only vitamin that gives you a visual cue as to its passage through your body. When there is a lot of vitamin B2 in the diet (or in a supplement), your urine turns bright yellow to show you it is there.