ZIMSEC O-Level Biology
8.20.1Management of ecosystems
Management of ecosystems in ZIMSEC O-Level Biology: what the syllabus expects you to know, the learning objectives and how to practise.
Subtopic42 practice questions2 lessons
Overview
Form 4.
Learning objectives
What the syllabus expects you to be able to do.
- 8.20.1.1Describe the advantages of ground cover (keeping topsoil, retaining water, reducing evaporation), identify harmful agricultural, mining, industrial and social activities and suggest corrective measures.
- 8.20.1.2Explain carrying capacity and the limiting factors that set it (water, food, oxygen, space, shelter), and describe the effects of exceeding it, such as degradation, overgrazing, disease and pollution.
Lessons
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Natural and artificial ecosystems and their management
19 min
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Populations, communities and ecosystems
20 min
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Sample question
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