It’s easy to feel like the information printed in textbooks is permanent and definitive, but in fact, they’re constantly being researched and updated as we learn more. Biology 13th Edition’s answer to this is to uphold Dr. Sylvia Mader’s original mission of helping students learn biological concepts as our understanding of the field evolves. The content in the text is centered around 3 main themes: Evolution, the Nature of Science, and Biological Systems, which helps ground your learnings and keep you focused as you go through the material. Much like the text’s namesake, the method of teaching biology is evolving just as much. This edition of the text introduces digital resources to supplement the text, including a new video series called BioNow Sessions and data from the LearnSmart learning platforms. Going from cells and genetics to animal biology and the greater ecology, you’ll learn the basics of biology, step by step.

Need a little extra help as you study? Look no further, because we’ve got you covered. Our educator-vetted guides are specially designed to help you get the Biology solutions you’re looking for. But here, it’s not just about getting the right answers. It’s about helping students like you gain a deeper understanding so all of those answers really stick, and so you can arrive at the right conclusions on your own as you continue studying. Thinking critically is at the core of our Biology 13th Edition solutions, so think of this as just another resource to move your understanding of biology even further.