populations and ecosystems

2 per litre of water. A weak organic waste has a BOD less then 1500 mg/ litre, a strong one has higher than this. A survey of the river Yamuna recorded BOD of 2000 at Delhi, 9000 at Mathura and 12,000 at Agra. Shifts in biodiversity of animals and plants in polluted ecosystem. Imbalance ..

Ecosystem - Structure and Function - The characteristic structure of an ecosystem is obtained by the systematic physical organisation of the abiotic and biotic components of that particular ecosystem. The two main structural features of any ecosystem are its ..

The characteristic structure of an ecosystem is obtained by the systematic physical organisation of the abiotic and biotic components of that particular ecosystem. The two main structural features of any ecosystem are its 'species composition' and 'stratification'. An ..

Structure and function in living systems Reproduction and heredity Regulation and behavior Populations and ecosystems Diversity and adaptations of organism..

Structure and function in living systems Reproduction and heredity Regulation and behavior Populations and ecosystems Diversity and adaptations of organism..

Structure and function in living systems Reproduction and heredity Regulation and behavior Populations and ecosystems Diversity and adaptations of organism..

Structure and function in living systems Reproduction and heredity Regulation and behavior Populations and ecosystems Diversity and adaptations of organism..

'The amount of organic matter or biomass produced by an individual organism, population, community or ecosystem during a given period of time is called productivity..

Biodiversity Changes in an ecosystem Fluctuations in population size in an ecosystem Water, carbon, and nitrogen - cycle between abiotic resources and organic matter in the ecosystem Oxygen cycles via photosynthesis and respiration Stability of producer..

Biodiversity Changes in an ecosystem Fluctuations in population size in an ecosystem Water, carbon, and nitrogen - cycle between abiotic resources and organic matter in the ecosystem Oxygen cycles via photosynthesis and respiration Stability of producer..