Biodiversity and Its Conservation Class 12 | NCERT Line-by-Line in ONE SHOT | by Shivani Ma'am

Shivani Ma'am explains the complete Class 12 Biology chapter Biodiversity and Its Conservation, covering every NCERT line with detailed examples and diagrams. Students will understand the meaning of biodiversity, its types, patterns, and the importance of conservation for NEET 2026. This lesson also includes important NCERT points and exam tips to help with effective revision.
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📌 𝐍𝐄𝐄𝐓 𝐒𝐀𝐀𝐑𝐓𝐇𝐈 𝐒𝐮𝐛𝐣𝐞𝐜𝐭-𝐰𝐢𝐬𝐞 𝐂𝐫𝐚𝐬𝐡 𝐂𝐨𝐮𝐫𝐬𝐞:-
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🌐 𝐉𝐨𝐢𝐧 𝐒𝐡𝐢𝐯𝐚𝐧𝐢 𝐌𝐚'𝐚𝐦 𝐓𝐆 𝐂𝐡𝐚𝐧𝐧𝐞𝐥 𝐅𝐨𝐫 𝐍𝐨𝐭𝐞𝐬, 𝐐𝐮𝐢𝐳𝐳𝐞𝐬, 𝐒𝐭𝐮𝐝𝐲 𝐌𝐚𝐭𝐞𝐫𝐢𝐚𝐥 & 𝐌𝐨𝐫𝐞: https://t.me/Bio_with_shivani_mam
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📌 𝐎𝐧𝐥𝐢𝐧𝐞 𝐋𝐢𝐯𝐞 𝐂𝐫𝐚𝐬𝐡 𝐂𝐨𝐮𝐫𝐬𝐞 𝐟𝐨𝐫 𝐍𝐄𝐄𝐓 𝐔𝐆 𝟐𝟎𝟐𝟔:
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📌 𝐁𝐞𝐬𝐭 𝐍𝐂𝐄𝐑𝐓 𝐁𝐚𝐬𝐞𝐝 𝐓𝐞𝐬𝐭 𝐒𝐞𝐫𝐢𝐞𝐬 𝐟𝐨𝐫 𝐍𝐄𝐄𝐓 𝟐𝟎𝟐𝟔:-
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📌 𝐉𝐨𝐢𝐧 𝐍𝐂𝐄𝐑𝐓 𝐍𝐄𝐄𝐓 𝐀𝐝𝐝𝐚𝟐𝟒𝟕 𝐒𝐨𝐜𝐢𝐚𝐥 𝐌𝐞𝐝𝐢𝐚 𝐅𝐨𝐫 𝐍𝐨𝐭𝐞𝐬, 𝐐𝐮𝐢𝐳𝐳𝐞𝐬, 𝐒𝐭𝐮𝐝𝐲 𝐌𝐚𝐭𝐞𝐫𝐢𝐚𝐥 & 𝐌𝐨𝐫𝐞:-

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📌 𝐃𝐫𝐞𝐚𝐦 𝐌𝐞𝐝𝐢𝐜𝐚𝐥 𝐂𝐨𝐥𝐥𝐞𝐠𝐞 𝐤𝐞 𝐥𝐢𝐲𝐞 𝐏𝐞𝐫𝐟𝐞𝐜𝐭 𝐒𝐡𝐮𝐫𝐮𝐚𝐚𝐭!
🔹 𝐀𝐜𝐡𝐢𝐞𝐯𝐞𝐫 𝐁𝐚𝐭𝐜𝐡 - NEET UG 2026 Online Course - https://applink.adda247.com/d/achieve...

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📌 𝐀𝐁𝐎𝐔𝐓 𝐍𝐂𝐄𝐑𝐓 𝐍𝐄𝐄𝐓 𝐀𝐃𝐃𝐀𝟐𝟒𝟕:-

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⏰ 𝐓𝐢𝐦𝐞𝐬𝐭𝐚𝐦𝐩𝐬:-
00:00 - Technical Issues
03:05 - Class Introduction & Chapter Importance
03:35 - Biodiversity & Conservation: NCERT Reading Plan
04:10 - Chapter Duration, Notes Strategy & Exam Relevance
05:00 - Biodiversity Definition & Conservation Concept
06:50 - Total Species Count & Extinction Threat
13:00 - Types of Biodiversity (Genetic, Species, Ecosystem)
13:58 - Genetic Diversity with Examples
18:15 - Species Diversity (Western vs Eastern Ghats)
19:50 - Ecosystem Diversity & India’s Rich Ecosystems
24:45 - Global Species Diversity & India’s Mega-Diversity
55:10 - Species–Area Relationship (s = caᶻ)
58:45 - Large-Scale Patterns & Value of Z
01:00:05 - Importance of Species Diversity in Ecosystems
01:00:30 - David Tilman: Diversity & Community Stability
01:10:05 - Keystone Species Concept
01:19:20 - Loss of Biodiversity & Extinct Species
01:31:55 - Causes of Biodiversity Loss (The Evil Quad)
01:48:50 - Conservation Strategies: In-situ & Ex-situ
01:54:30 - Biodiversity Hotspots (India Focus)
01:57:15 - Biosphere Reserves, National Parks & Sanctuaries
01:57:55 - Sacred Groves & Community Conservation
01:59:20 - Conservation Methods & Cryopreservation
02:00:25 - Global Biodiversity Summits (Rio & Johannesburg)
02:02:40 - Class Schedule, Series Plan & Telegram Support