NEET Biology Video Course

Ecosytem (Code-RES)

Class XII 12 Biology Ecosystem- Part 1(Ecosystem-Structure And Function)- RES1

  • Components of ecosystem

  • Ecosystem structure

  • Ecosystem function

  • Key functional aspects of ecosystem are

Class XI 12 Biology Ecosystem- Part 2(Productivity)-RES2

  • Primary productivity

  • Gross primary productivity

  • Net primary productivity

  • Secondary productivity

Class XI 12 Biology Ecosystem- Part 3(Decomposition)-RES3

  • Decomposition process

  • Fragmentation of detritus

  • Leaching

  • Catabolism

  • Nutrient immobilisation

Class XI 12 Biology Ecosystem- Part 4(Energy Flow- energy flow model)-RES4

  • Food chain

  • Grazing food chain

  • Detritus food chain

  • Food web

Class XII 12 Biology Ecosystem- Part 5(Ecological Pyramids)-RES5

  • Pyramid of numbers

  • Pyramid of biomass

  • Pyramid of energy

  • Limitations of ecological pyramids

Class XII 12 Biology Ecosystem- Part 6(Ecological Succession)-RES6

  • Succession of plants

  • Primary succession

  • Secondary succession

  • Pioneer species

  • Pioneer community

  • Hydrarch succession

  • Xerarch successsion

Class XII 12 Biology Ecosystem- Part 7(Nutrient Cycles)-RES7

  • Input of nutrients

  • Output of nutrients

  • Internal nurtient cycling

Class XII 12 Biology Ecosystem- Part 8(Nitrogen cycle)-RES8

  • Ammonification

  • nitrification

Class XII 12 Biology Ecosystem- Part 9(Carbon cycle)-RES9

Class XII 12 Biology Ecosystem- Part 10(Phosphorus cycle)-RES10

Class XII 12 Biology Ecosystem- Part 11(Ecosystem Services)-RES11

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