Download or read book Edexcel AS Biology Unit 2: Development, Plants and the Environment written by Mary Jones and published by Philip Allan. This book was released on 2009-04-24 with total page 149 pages. Available in PDF, EPUB and Kindle. Book excerpt: Student Unit Guides are perfect for revision. Each guide is written by an examiner and explains the unit requirements, summarises the relevant unit content and includes a series of specimen questions and answers.