Versioning History

This page provides a record of edits and changes made to this book since its initial publication in the B.C. Open Textbook Collection. Whenever edits or updates are made, we make the required changes in the text and provide a record and description of those changes here. If the change is minor, the version number increases by 0.01. However, if the edits involve substantial updates, the version number goes up to the next full number. The files on our website always reflect the most recent version, including the print-on-demand copy.

If you find an error in this book, please fill out the Report an Error form.

Version Date Change Details
1.01 May 1, 2015 Book added to the B.C. Open Textbook collection.
1.02 November 21, 2017
  • Fixed blue text
  • Reformatted exercise questions
Some <a id=””> tags in the book were causing large sections of text to turn blue. These tags were removed. In addition, all of the exercise questions were edited to ensure a consistent format. This involved putting the content into ordered lists and grouping questions and answers together.

Note: We are aware that there is some text missing in Chapter 20.4, that Chapter 14.1 is missing exercise questions, and that Chapter 14.2 and 14.3 have the same exercise questions. The author has been informed of these issues and we will update the book once we receive the corrections.

1.03 September 17, 2018 Image 2.15 replaced. Original Figure 2.15 image was a duplicate of Figure 2.17. Replaced Figure 2.15 with the correct image.
1.04 June 13, 2019 Updated the book’s theme. The styles of this book have been updated, which may affect the page numbers of the PDF and print copy.
2.01 March 3, 2021 Added H5P activities and improved book structure and formatting. 80 H5P activities were embedded throughout the book, book structure was revised to improve navigation (but the order of all chapters remains the same), all PowerPoint files were compiled in the back matter of the book, and front matter and metadata was updated.
2.02 January 5, 2022 Updated image attributions. Corrected figure numbering and attribution statements in Chapter 2.3 Biological Molecules.
2.03 May 31, 2022 Added missing text. Added a missing key term in the text under the header “Transport of Carbon Dioxide in the Blood” in Chapter 20.4 Transport of Gases in Human Bodily Fluids.
2.04 April 18, 2023 Removed extra HTML and corrected a minor error. Cleaned up HTML in 22.4 Nitrogenous Wastes. In the summary of the same section, changed “Urea is the major byproduct of ammonia metabolism in vertebrate animals” to “Urea is the major byproduct of ammonia metabolism in mammals.”
2.05 October 25, 2023 Fixed broken link. Replaced link to animation about dendritic cells in section 23.2. Adaptive Immune Response.


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Concepts of Biology - 1st Canadian Edition Copyright © 2015 by Charles Molnar and Jane Gair is licensed under a Creative Commons Attribution 4.0 International License, except where otherwise noted.

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