Food Chain YouTube Lecture Handouts
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4 Concepts & Exceptions in Ecosystem - Food Chain, Food Web, Pyramids, Biomagnification
Food Chain Food Web Ecological Pyramids
Contents
- Food chain
- Trophic levels
- Types of food chains
- Food web
- Significance of food web
- Ecological pyramids
- Disadvantages of ecological pyramids
Food Chain
Steps of Food Chains
Trophic Levels
Types of Food Chain
- Grazing food chain
- Detritus food chain
- Parasitic food chain
Food Web
Significance of Food Web
- Maintain the ecological balance
- Feeding relations among organisms
- Energy flow and nutrient cycling
- Alternate source of food
Ecological Pyramids
- Pyramid of Number
- Pyramid of Biomass
- Pyramid of Energy
Pyramid of Number
Pyramid of Number
Pyramid of Biomass
Pyramid of Energy
Disadvantages of Ecological Pyramids
- Only indicates food chain
- Decomposers?
- Single Organisms different trophic levels?
✍ Manishika