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Environment and Ecology Part 1.6

Lesson 6 of 18 • 826 upvotes • 13:52 mins

Roman Saini

Roman deals with energy flow in an ecosystem, biotic factors, food chain and much more awesome stuff. In this video, Dr. Roman deals with energy flow, exceptions: hydro-thermal ecosystem: chemoautotrophs, photosynthetically active radiation, unidirectional flow of energy, law of thermodynamics, entropy law: anarchy, instability, 10% law of Lindeman, heterotrophs, herbivores, carnivores, omnivores, special points of biotic factors: nutrient mobilisation, whale: filter feeder, vulture, insectivorous plant, man and peacock, milk or curd eating, food chain: terrestial, aquatic, Food web, Types of food chain: grazing/predatory, parasitic, detritus/saprophytic/osmotrophic, saprophytes/osmotrophs, four trophic levels, ecological pyramid. Still if you are left with any doubt, ask at his facebook page http://facebook.com/romansaini.official Video by Unacademy for IAS Preparation. How to prepare for IAS exam, Best IAS Coaching, IAS Civil Services Syllabus, Study Material for IAS Exam, IAS Civil Services Exam, UPSC Preparation, Tips for IAS, Material for IAS Preparation, UPSC Exam Material, IAS How to prepare, Other good resources: Mrunal and Clearias , IAS preparation tips, How to prepare for IAS 2015