top of page

ADVANCED BIOLOGY

Theme D: Ecosystems

Step-by-step worked explanations

Independent study support

Flexible online learning

01.

Evolution and speciation

12 Video Lessons • Worked Examples • Multilingual Support

03.

Adaptation to environment

12 Video Lessons • Worked Examples • Multilingual Support

05.

Populations and communities

12 Video Lessons • Worked Examples • Multilingual Support

07.

Natural selection

12 Video Lessons • Worked Examples • Multilingual Support

09.

Climate change

12 Video Lessons • Worked Examples • Multilingual Support

02.

Conservation of biodiversity

12 Video Lessons • Worked Examples • Multilingual Support

04.

Ecological niches

12 Video Lessons • Worked Examples • Multilingual Support

06.

Transfers of energy and matter

12 Video Lessons • Worked Examples • Multilingual Support

08.

Stability and change

12 Video Lessons • Worked Examples • Multilingual Support

BestStudyNest

beststudynest.com

Independent learning resources for IB Diploma Programme and A-level students.

Study Support

Video explanations
Worked examples
Exam-style practice

© 2026 BestStudyNest. All rights reserved.
Independent learning resources; not affiliated with, approved or endorsed by the International Baccalaureate Organization, Cambridge International Education, Pearson or other examination boards mentioned here. Course names identify the intended study context only. IB and International Baccalaureate are trademarks of the International Baccalaureate Organization. Other trademarks belong to their respective owners.

bottom of page