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Chapter Summary

Biodiversity and Conservation

CBSE · Class 11 · Geography

Summary of Biodiversity and Conservation for CBSE Class 11 Geography. Key concepts, important points, and chapter overview.

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Overview

Biodiversity means the number and variety of organisms found within a specified geographic region. It includes plants, animals, micro-organisms, the genes they contain, and the ecosystems they form. Biodiversity today is the result of 2.5-3.5 billion years of evolution. It is richest in the tropics

Key Concepts

Biodiversity is the variety of life

Biodiversity is the variety of life in a region. It includes the variation within species, the variety of species, and the diversity of ecosystems.

Genetic diversity refers to variation

Genetic diversity refers to variation of genes within a species. It causes differences among individuals of the same species, such as differences in h

Species diversity is the variety

Species diversity is the variety of species in a defined area. It is measured through richness, abundance, and types of species.

Ecosystem diversity refers to the variety

Ecosystem diversity refers to the variety of ecosystems and habitats, along with the ecological processes within them. Ecosystem boundaries are not ri

Areas rich in species diversity

Areas rich in species diversity are called hotspots. Hotspots are defined according to vegetation because plants determine the primary productivity of

Learning Objectives

  • Define biodiversity and explain its meaning at different levels.
  • Describe genetic diversity, species diversity, and ecosystem diversity.
  • Explain why biodiversity is richer in the tropics.
  • Understand the ecological, economic, and scientific importance of biodiversity.
  • Identify major causes of biodiversity loss.

Frequently Asked Questions

What are the important topics in Biodiversity and Conservation for CBSE Class 11 Geography?
Biodiversity and Conservation covers several key topics that are frequently asked in CBSE Class 11 board exams. Focus on the core concepts listed on this page and practise related questions to build confidence.
How to score full marks in Biodiversity and Conservation — CBSE Class 11 Geography?
Understand the core concepts first, then work through the 81 practice questions available for this chapter. Revise formulas and definitions regularly, and use flashcards for quick recall before the exam.

Sources & Official References

Content is aligned to the official syllabus. Refer to the board website for the latest curriculum.

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