About

Welcome to biocode

I am an experienced teacher of IB Biology. My interests include hiking and taking part in conservation work.

I hope you find these resources useful in your learning and deepen your enjoyment of biology.

They provide extra opportunities to explore Intelligent Design theory and to consider the elegant engineering instructions found within every cell. 

May you grow in wisdom, knowledge and understanding.

sources include the following textbooks and other online material

Allott, A., & Mindorff, D. (2023). 
Biology: Course companion.
Oxford University Press

Daman, A., McGonegal, R., & Ward, W. (2023). 
Biology for the IB Diploma Programme. Pearson.

Clegg, C. J., Davis, A., & Talbot, C. (2023). 

Biology for the IB diploma third edition.
Hodder Education Group. 

permissions

These notes continue to be updated.
Feel free to make contact for any suggestions, questions or corrections: contact@biocode.co

The content on this website is under copyright biocode ©2026 by Dougal Strahan

Students who purchase a resource may use it for their own personal use.
Teachers who purchase a resource may use it in their own classroom and provide it to their own students at no cost but cannot share resources through a public website or social media platform.

Images attributed to biocode.co in free resources can be reused with appropriate attribution but not sold without permission.
Images attributed to biocode.co in purchased resources cannot be reused without permission.

The notes also contain many images that are under a creative commons copyright and are free to reuse:

  • most of these require attribution to the original author
  • some cannot be used commercially
  • some cannot be adapted
  • some must be shared under a similar license

Other images have been used with specific permission or from stock providers and cannot be reused in another work.
Some images are in the public domain. Therefore, check the hyperlink of each image to be sure.