In unit 5, the last question (question 8) 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 8 for Biology IAL (International Advanced Level) WBI15/01.

(The article is provided by Pearson Edexcel Examination – October 2025)

This document consists of
o Article Summary (252 words) and a more concise version of 50 words
o Five (5) Key Take Aways for the entire article (these are the things you should know and understand from this article before the exam).
o Vocabulary and Definitions of unknown words for each paragraph
o Key Take Aways and summary for each of the 2 sub-articles
o Key Take Aways for each paragraph
o 304 potential questions each with its answer
 The questions are based on the scientific article
 70% 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.