Biodiversity for Sustenance of Mankind — Chapter Summary
ICSE · Class 11 · Geography
Summary of Biodiversity for Sustenance of Mankind for ICSE Class 11 Geography. Part of the ICSE Class 11 Geography syllabus.
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Overview
Biodiversity is closely connected with human survival, food supply, medicines, and environmental balance. Plants, animals, microorganisms, forests, water, and land all support life and form the base of food chains and natural cycles. Human beings depend on biodiversity for food, clothing, shelter, m
Key Concepts
Biodiversity includes the variety of plants
Biodiversity includes the variety of plants, animals, and other living forms that support human life. Humans depend on natural resources such as air,
A food chain is the systematic
A food chain is the systematic arrangement of living organisms through which energy passes from one level to another. Plants and algae form the first
Plants and algae are the first
Plants and algae are the first level in the food chain. They use light energy to convert carbon dioxide and water into carbohydrates through photosynt
Primary consumers are plant
Primary consumers are plant-eating animals or herbivores such as insects, mice, and goat. They depend directly on plants for food.
Secondary consumers feed on primary consumers
Secondary consumers feed on primary consumers. They are carnivores such as owl and lion.
Learning Objectives
- Understand the meaning of biodiversity and its role in human life
- Explain the structure of a food chain and the roles of producers, consumers, and decomposers
- Recognise biodiversity as a source of food, medicines, and raw materials
- Understand how agriculture developed and how the Green Revolution improved crop production
- Identify major steps taken to protect the environment through awareness and legislation
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Sources & Official References
Content is aligned to the official syllabus. Refer to the board website for the latest curriculum.
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