Скачать или смотреть Ecosystem Class 12 SEM 4 Biology ONESHOT | Dhurandar Series : HS 2026 | LET'S IMPROVE

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🧬 Ecosystem Class 12 SEM 4 Biology ONESHOT | Dhurandar Series : HS 2026 | LET'S IMPROVE

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🧠 Ecosystem Class 12 SEM 4 Biology ONESHOT | HS 2026 | LET’S IMPROVE

In this complete Ecosystem ONESHOT, Ipshita Ma'am covers the entire Class 12 SEM 4 Biology – Ecosystem chapter in a fast-paced yet concept-clear manner, specially designed for HS 2026 students of WBCHSE.
This lecture is part of our Dhurandar Series, created for students who want maximum marks in minimum time.

🔥 What you’ll learn in this video:
✔ Ecosystem full chapter explanation (SEM 4 syllabus)
✔ Structure & functions of an ecosystem
✔ Biotic & abiotic components
✔ Energy flow in ecosystem (food chain & food web)
✔ Ecological pyramids (number, biomass, energy)
✔ Ecological succession (primary & secondary)
✔ Nutrient cycles – Carbon & Phosphorus cycle
✔ Important definitions, diagrams & flowcharts
✔ ABTA Test Paper Ecosystem solutions
✔ HS Previous Year Questions (PYQ) solved
✔ Board-oriented short & long answer questions
✔ Common mistakes & exam-focused tips

🎯 This one-shot revision video is ideal for:
📌 HS 2026 Class 12 SEM 4 Biology students
📌 Students who find Ecology chapters confusing
📌 Last-moment Biology revision seekers
📌 Students preparing for board exams & competitive exams