ISBN:9780008236199 豆瓣评分 目前无人评价 评价: 写笔记 写书评 加入购书单 分享到 推荐 内容简介· ··· Exam Board: EdexcelLevel & Subject: International GCSE Biology and Double Award ScienceFirst teaching: September 2017 First exams: June 2019Co-teach Edexcel International GCSE Biology and Double ...
DNA is a double helix with each strand linked by a series of paired bases. There are four bases in DNA. The table below shows the percentage of each base found in a sample of DNA taken from a mammal. Only two of the bases have been named in the table. (a) Complete the...
Animal models have shown nutrient-sensing pathways, such as the insulin and insulin-like growth factor1 (IIS), mTOR and sirtuin pathways, can provide the molecular basis for the association between lifestyle and ageing. Furthermore, these pathways have been implicated in stem cell maintenance, su...
A motivating and challenging course for middle to higher ability GCSE students This motivating course is specifically designed for middle to higher ability students following the current GCSE Double and Triple Award specifications. * Motivates and engages students through a clear page design, including ...