Videos for D4.2 Sustainability and change - IB
These comprehensive video lessons help IB Biology students Standard Level (SL) and Higher Level (HL) understand and master the essential concepts needed for success in IB Exams. Each video focuses on D4.2 Sustainability and change and is aligned with the IB Biology syllabus, ensuring focused learning on cell biology, genetics, and ecology. Students can watch and rewatch anytime, anywhere, perfect for visual learners, reinforcing complex concepts, and understanding IB methodology. By using RevisionDojo's video lessons consistently, learners build deep understanding and enter the exam with confidence.
2 min
Biology D4.2.1
D4.2.1 Stability as a property of natural ecosystems
1 min
Biology D4.2.2
D4.2.2 Requirements for stability in ecosystems
1 min
Biology D4.2.3
D4.2.3 Deforestation of Amazon rainforest
1 min
Biology D4.2.4
D4.2.4 Use of a model to investigate the effect of variables on ecosystem stability
1 min
Biology D4.2.5
D4.2.5 Role of keystone species in the stability of ecosystems
1 min
Biology D4.2.6
D4.2.6 Assessing sustainability of resource harvesting from natural ecosystems
1 min
Biology D4.2.7
D4.2.7 Factors affecting the sustainability of agriculture
2 min
Biology D4.2.8
D4.2.8 Eutrophication of aquatic and marine ecosystems due to leaching
1 min
Biology D4.2.9
D4.2.9 Biomagnification of pollutants in natural ecosystems
4 min
Biology D4.2.10
D4.2.10 Effects of microplastic and macroplastic pollution of the oceans
3 min
Biology D4.2.11
D4.2.11 Restoration of natural processes in ecosystems by rewilding
4 min
Biology D4.2.12
D4.2.12 Ecological succession and its causes (HL)
1 min
Biology D4.2.13
D4.2.13 Changes occurring during primary succession (HL)
2 min
Biology D4.2.14
D4.2.14 Cyclical succession in ecosystems (HL)
2 min
Biology D4.2.15
D4.2.15 Climax communities and arrested succession (HL)