In unit 5, the last question (question 9) is based on a pre-released scientific article a total of 30 marks.

In this document, you will find potential questions and answers for the Scientific Article for question 9 for Biology IAL (International Advanced Level) WBI15/01.
(The article is provided by Pearson Edexcel Examination – January 2026)

This document consists of
o Article Summary (257 words) and a more concise version of 49 words
o Five (5) Key Takeaways for the entire article (these are the things you should know and understand from this article before the exam).
o Key Take aways for each of the 4 subsections and for each paragraph
o Vocabulary and Definitions of unknown words for each paragraph
o Mind Map for the article
o IAL book topic linked to each paragraph
o 446 potential questions each with its answer
➢ The questions are based on the scientific article
➢ 80% of them are linked to the syllabus, thus this document can be used for revision as well
➢ Includes definitions
The article is available at the end of this booklet.