You will get here Science Biology class 12 CBSE notes Chapter 13: Biodiversity And Conservation. You can connect with us for every important update related to class 12.
Science Biology is a very important subject for you because it will help you increase your percentage as well as it is an important subject for your medical entrance exam. You can score high marks in this subject by studying notes and practicing MCQs. In this post, we will cover Chapter 13: Biodiversity And Conservation.
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Key Content Of Chapter 13 Biodiversity And Conservation
🔹 Biodiversity kya hai?
👉 Living organisms ki variety (genes, species, ecosystems)
🔹 Types of Biodiversity
- Genetic Diversity – same species me variation
- Species Diversity – different species ka number
- Ecological Diversity – different ecosystems
🔹 Important Facts
- 1.5 million species discovered
- Total approx: 7 million
- 70% species = animals
- India = mega biodiversity country
🔹 Patterns of Biodiversity
- Tropics > Poles (zyada species equator ke paas)
- Area badhe → species badhe
🔹 Importance of Biodiversity
- Ecosystem stable banata hai
- Food, oxygen, medicines deta hai
- Human survival ke liye essential
🔹 Biodiversity Loss (Evil Quartet)
- Habitat loss
- Over-exploitation
- Alien species invasion
- Co-extinction
🔹 Conservation of Biodiversity
1. In-situ
👉 Natural habitat me protection
- National parks
- Sanctuaries
2. Ex-situ
👉 Outside habitat
- Zoos
- Seed banks
🔹 Hotspots (India)
- Western Ghats
- Himalaya
- Indo-Burma
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Class 12 Science Biology Chapter 13: Biodiversity And Conservation Notes
Biodiversity And Conservation
Class 12 Biology Chapter 13 – Pulse by Anubhav
Complete notes, NCERT PDF aur updated syllabus yahan se easily access karo.
Is chapter mein biodiversity ke types, patterns, importance, aur conservation methods explain kiye gaye hain — exam ke liye super important topic 🔥
Class 12 Biology Chapter 13 Biodiversity And Conservation MCQs
Biodiversity And Conservation (MCQs) – Pulse by Anubhav
1. Biodiversity refers to:
A. Variety of life forms
B. Only plants
C. Only animals
D. Only microbes
2. Who popularized the term biodiversity?
A. Darwin
B. Edward Wilson
C. Mendel
D. Lamarck
3. Which is NOT a type of biodiversity?
A. Genetic
B. Species
C. Chemical
D. Ecological
4. Maximum biodiversity is found in:
A. Tropics
B. Poles
C. Deserts
D. Mountains
5. India is known as:
A. Mega biodiversity country
B. Desert country
C. Polar country
D. Ocean country
6. Which is the biggest cause of biodiversity loss?
A. Habitat loss
B. Rainfall
C. Temperature
D. Wind
7. The term ‘Evil Quartet’ includes:
A. Causes of biodiversity loss
B. Types of species
C. Ecosystem types
D. Food chains
8. In-situ conservation means:
A. Conservation in natural habitat
B. Conservation in labs
C. Conservation in zoos only
D. Conservation in seed banks
9. Which is an example of ex-situ conservation?
A. National park
B. Zoo
C. Forest
D. Sanctuary
10. Biodiversity is important because:
A. It supports ecosystem stability
B. It reduces oxygen
C. It destroys environment
D. It has no role
Score: 0 / 10
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FAQs About Biodiversity And Conservation
Biodiversity And Conservation – FAQs (Pulse by Anubhav)
1. What is Biodiversity?
Biodiversity means the variety of all living organisms including plants, animals, and microorganisms at genetic, species, and ecosystem levels.
2. What are the types of Biodiversity?
There are three main types: Genetic diversity, Species diversity, and Ecological diversity.
3. Why is Biodiversity important?
Biodiversity helps in ecosystem stability, provides food, oxygen, medicines, and is essential for human survival.
4. What are the causes of Biodiversity loss?
Main causes include habitat loss, over-exploitation, alien species invasion, and co-extinction.
5. What is Biodiversity Conservation?
Biodiversity conservation means protecting and managing biodiversity to prevent extinction and maintain ecological balance.
6. What is in-situ conservation?
In-situ conservation means protecting species in their natural habitat like national parks and wildlife sanctuaries.
7. What is ex-situ conservation?
Ex-situ conservation means protecting species outside their natural habitat like zoos, botanical gardens, and seed banks.
Class 12 Biology Notes – All Chapters (Pulse by Anubhav)
| Chapter | Topic | Open |
|---|---|---|
| Chapter I | Sexual Reproduction in Flowering Plants | View → |
| Chapter II | Human Reproduction | View → |
| Chapter III | Reproductive Health | View → |
| Chapter IV | Principles of Inheritance and Variation | View → |
| Chapter V | Molecular Basis of Inheritance | View → |
| Chapter VI | Evolution | View → |
| Chapter VII | Human Health and Disease | View → |
| Chapter VIII | Microbes in Human Welfare | View → |
| Chapter IX | Biotechnology: Principles and Processes | View → |
| Chapter X | Biotechnology and its Applications | View → |
| Chapter XI | Organisms and Populations | View |
| Chapter XII | Ecosystem | View → |
| Chapter XIII | Biodiversity And Conservation | View → |
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