20.4 Conservation
- Syllabus
- 0610–2026–2027
- Topic
- 20.4
- Level
- —
20.4.1—Sustainable resource as one which is
- Describe a sustainable resource as one which is produced as rapidly as it is removed from the environment so that it does not run out
20.4.2—Some resources can be conserved
- State that some resources can be conserved and managed sustainably, limited to forests and fish stocks
20.4.3—Organisms become endangered or extinct
- Explain why organisms become endangered or extinct, including: climate change, habitat destruction, hunting, overharvesting, pollution and introduced species
20.4.4—Endangered species can be conserved
- Describe how endangered species can be conserved, limited to: (a) monitoring and protecting species and habitats (b) education (c) captive breeding programmes (d) seed banks
20.4.5—Forests can be conserved using
- Explain how forests can be conserved using: education, protected areas, quotas and replanting
20.4.6—Fish stocks can be conserved using
- Explain how fish stocks can be conserved using: education, closed seasons, protected areas, controlled net types and mesh size, quotas and monitoring
20.4.7—Reasons for conservation programmes
- Describe the reasons for conservation programmes, limited to: (a) maintaining or increasing biodiversity (b) reducing extinction (c) protecting vulnerable ecosystems (d) maintaining ecosystem functions, limited to nutrient cycling and resource provision, including food, drugs, fuel and genes
20.4.8—Use of artificial insemination (AI)
- Describe the use of artificial insemination (AI) and in vitro fertilisation (IVF) in captive breeding programmes
20.4.9—Risks to a species if its population
- Explain the risks to a species if its population size decreases, reducing genetic variation (knowledge of genetic drift is not required)
Objective notes
9 learning objectivesConceptIGCSE Biology