For top grades and an excellent understanding of biology, this powerful study tool is the best tutor you can have. It's been updated to include the latest advances in the field. Features detailed illustrations of complex biologic systems and processes, and takes students by the hand from the smallest elements of life to the primates. Hundreds of problems with fully-explained solutions cut down on study time and make important points easy to remember. Additional problems with answers let students gauge their progress every step of the way..