Featuring a wealth of engaging content, this concept-based Course Book has been developed in cooperation with the IB to provide the most comprehensive support for the DP Biology specification, for first teaching from September 2023. Created by experienced IB authors, examiners and teachers, it is packed with activities, questions, and opportunities to regularly practice, plus extensive assessme…
The question of how and why organisms age has teased scientists for centuries. There are myriad competing theories, from the idea that aging is a simple wear and tear process, like the rusting of a car, to the belief that aging and death are genetically programmed and controlled. In fact, there is no clearly defined limit to life, and no single, predictable program playing itself different thin…