NCERT Biology Class 12 Chapter 13 Biodiversity and Conservation Notes

Biodiversity and Conservation is an important chapter in Class 12 Biology that focuses on the variety of life on Earth and the need to protect it. Biodiversity is essential for maintaining ecological balance and supporting life. This chapter explains the importance of biodiversity, threats to it, and conservation strategies.

What is Biodiversity?

Biodiversity refers to the variety of living organisms present on Earth, including plants, animals, microorganisms, and their ecosystems. It contributes to environmental stability and human well-being.

Importance of Biodiversity

Biodiversity provides numerous benefits such as:

Ecological balance
Food and medicines
Genetic resources
Environmental sustainability

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Loss of Biodiversity

Human activities such as habitat destruction, pollution, overexploitation, and climate change have led to a significant decline in biodiversity. Protecting endangered species has become a major global concern.

Conservation of Biodiversity

Biodiversity can be conserved through various methods:

In-Situ Conservation

Protection of species in their natural habitats through national parks, wildlife sanctuaries, and biosphere reserves.

Ex-Situ Conservation

Protection of species outside their natural habitats through zoos, botanical gardens, and gene banks.

Importance of the Chapter

This chapter helps students understand the value of biodiversity and the importance of conservation efforts. It is an important topic for CBSE Board Exams and competitive examinations such as NEET.

CBSE Exam Preparation Tips

Focus on biodiversity, causes of biodiversity loss, conservation methods, biodiversity hotspots, and protected areas. Regular revision of NCERT concepts and examples will help improve conceptual understanding and examination performance.

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