Ecosystem - Full Chapter Explanation | Class 12 Biology Chapter 14 | 2022-23
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✔️ Class: 12th
✔️ Subject: Biology
✔️ Chapter: Ecosystem (Chapter 14)
✔️ Topic Name: Ecosystem - Full Chapter Explanation | Class 12 Biology Chapter 14 | 2022-23
✔️ Topics Covered In This Video : This video provides deeper understanding of concepts to the students who are preparing for the CBSE Class 12 Biology exam in the year 2023. It is presented by Ashish Sir and provides a thorough overview of chapter 14 Ecosystem.
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00:00 Introduction: Ecosystem
07:31 Importance of Ecosystem:
09:40 Organisation (Components) of the Ecosystem:
18:00 Abiotic Component of Ecosystem:
19:31 Difference Between Producers and Consumers:
22:25 Difference Between Primary Carnivores and Secondary Carnivores
22:59 Organisation (Components) of the Ecosystem:
28:28 Difference Between Producers and Decomposers:
32:45 Productivity
33:17 Ecosystem Structure and Functions:
44:28 Difference Between Net Primary Productivity and Gross Primary Productivity:
48:38 Difference Between Primary Productivity and Secondary Productivity:
53:01 Some Information Related to Productivity:
57:33 Factor Affecting Primary Productivity:
58:47 Decomposition
01:01:35 Decomposition Processes
01:06:50 Process Involved in Decomposition of Detritus:
01:12:03 Factors
01:14:12 Food Chain
01:14:47 Trophic Levels:
01:17:51 Diagrammatic Representation of Trophic Level in an Ecosystem:
01:25:41 Ecological Principles Derived from Food Chain:
01:27:21 Food Web
01:29:20 Difference Between Grazing and Detritus Food Chains:
01:31:09 Difference Between Food Chain and Food Web
01:32:49 Ten Percent Law:
01:35:19 Fate of Solar Energy Incident on Vegetation:
01:37:41 Pyramid of Numbers:
01:46:53 Pyramid of Biomass
01:50:12 Pyramid of Energy
01:51:47 Limitation of Ecological Pyramid:
01:52:47 Importance of Ecosystem Study:
01:53:58 Ecological Efficiency:
01:57:32 Biotic or Ecological Succession:
02:05:12 Ecological Succession:
02:05:35 Ecological Succession Shows Certain Characteristics:
02:07:41 Summary of Xerarch:
02:08:05 Difference Between Primary Succession and Secondary Succession:
02:11:15 Nutrient Cycle:
02:12:48 Following Types of Cycle are Found in Ecosystem:
02:13:20 Carbon Content and its Recycling:
02:14:47 Carbon Cycle
02:15:55 Phosphorus Cycle
02:19:09 Nitrogen Cycle
02:23:58 Ecosystem Services
02:25:46 Website Overview
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