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Ecosystem
Punjab
Class 12
Biology (
Total Videos: 469
)
Preference
All Chapters
Chapter 15: Homeostasis
Chapter 16: Support And Movement
Chapter 17: Coordination And Control
Chapter 18: Reproduction
Chapter 19: Growth And Development
Chapter 20: Chromosomes And DNA
Chapter 21: Cell Cycle
Chapter 22: Variation And Genetics
Chapter 23: Biotechnology
Chapter 24: Evolution
Chapter 25: Ecosystem
Chapter 26: Some Major Ecosystems
Chapter 27: Man And His Environment
Show Content
Select a chapter above and press 'Show Content'. Click a video topic below to view.
Chapter 25 Ecosystem (
27 videos
)
  (
Practice Test
)
25.1: Introduction (
Practice Test
)
Ecology
2941 views
25.2: Ecosystem (
Practice Test
)
Components of Ecosystem
5633 views
Biosphere
10372 views
Autecology and Synecology
6364 views
25.3: Components of Ecosystem (
Practice Test
)
Biotic Components
1793 views
Abiotic Components
2977 views
Abiotic Components (Temperature and Water)
1520 views
Abiotic Components (Fire, Atmosphere and Wind)
1598 views
Processes in Ecosystem and Interaction Between Biotic Components
1045 views
Food Chain
2835 views
Food Web
4222 views
25.4: Succession (
Practice Test
)
Succession
3668 views
Two Major Form of Succession
1999 views
Secondary Succession
1248 views
Stages of Succession
3627 views
Xerosere
2174 views
More on Xerosere
903 views
Parasitism
2517 views
Differences Between a Parasite and a Predator
1474 views
Symbiosis
3557 views
Symbiosis
574 views
More on Symbiosis
1817 views
25.5: Biogeochemical Cycles (
Practice Test
)
The Nitrogen Cycle
3523 views
More on Nitrogen Cycle
1332 views
Nitrogen Depletion & Its Remedies
1072 views
Flow of Energy
3628 views
Energy Relations Between Different Trophic Levels
566 views
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