Offers comprehensive coverage of all the latest syllabus requirements and all the options for Standard Level Biology. Contains differentiated content for Standard Level students, developing core topics separately. Contains exercises that have been written specifically for the correct level. Designed to be used alongside the Higher Level text where Standard Level and Higher Level are taught in the same class. Uses appropriate and accessible language, illustrated examples and levelled exercises, and worked examples and includes past paper questions and answers. Offers guidance on internal assessment and the extended essay, with links to Theory of Knowledge throughout.