Second abundant greenhouse gas after CO2is (1) Methane (2) NOx (3) CFC (4) Ozone Understanding the composition and impact of greenhouse gases is crucial in addressing climate change. While […]
Tag: CSIR NET Life Science Previous Year Questions on applied ecology
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CSIR NET Life Science Previous Year Questions and Solution on applied ecology
Why Cyanobacteria Outcompete Green Algae in Eutrophic Lakes: The Role of Nitrogen Fixation
Cyanobacteria out competes the green algae in eutrophic lakes due to organic pollutions because they can (1) tolerate low oxygen level (2) tolerate high phosphorus level (3) fix nitrogen, so […]
CSIR NET Life Science Previous Year Questions and Solution on applied ecology
How DDT Accumulation Led to the Decline of Brown Pelicans: The Role of Eggshell Thinning
The accumulation of DDT has decreased the populationof Brown Pelican ducks because DDT (1) Altered the ducks’s calcium metabolism in a waythat results in thin eggshells. (2) Directly Killed all […]
CSIR NET Life Science Previous Year Questions and Solution on applied ecology
Understanding the BOD Curve in Oxygenated Nutrient Broth Inoculated with Bacteria
If nutrient broth is oxygenated and inoculated by bacteria, then the graph of BOD with time for duration of five days will be When bacteria are introduced into oxygenated nutrient […]
CSIR NET Life Science Previous Year Questions and Solution on applied ecology
Best Indicator of Water Pollution from Human Feces: Why E. coli Stands Out
Among the following which is best indicator of water pollution due mixing of human feces (1) E. coli (2) Trypanosoma (3) Paramecium (4) Bacillus Water pollution caused by the mixing […]
CSIR NET Life Science Previous Year Questions and Solution on applied ecology
Red Tides: The Role of Dinoflagellates in Oceanic Toxic Algal Blooms
Periodic toxic algal blooms in oceans leading to red tides are due to (1) Dinoflagellates (2) Cyanobacteria (3) Brown-Red algae (4) Green Algae Periodic toxic algal blooms in oceans, commonly […]
CSIR NET Life Science Previous Year Questions and Solution on applied ecology
Releasing High BOD Water into a Freshwater Lake: Effects and Ecological Consequences
What would happen if we release the high BOD water into fresh lake? (1) Opacity will decrease (2) Number of organism will decrease (3) Amount of dissolved oxygen will decrease […]
CSIR NET Life Science Previous Year Questions and Solution on applied ecology
Why Pesticide Use Sometimes Increases Pest Populations: Causes and Consequences
On application of certain pesticide it was observed thatthe population of pests instead of decreasing actuallyincreased. The probable cause could be (1) Development of resistance (2) Pesticide is ineffective (3) […]
CSIR NET Life Science Previous Year Questions and Solution on applied ecology
How Automobile Pollution Causes Respiratory Problems: The Role of Fine Particulate Matter (SPM<10µm)
Main cause of respiratory problem arising frompollution from automobile combustion is due to- (1) NOx (2) SO2 (3) SPM<10µm (4) SPM>50µm Automobile combustion is a major source of urban air […]
CSIR NET Life Science Previous Year Questions and Solution on applied ecology
Minamata Disease: A Classic Example of Bioaccumulation and Biomagnification
Minimata disease is an example of- (1) Bioaccumulation (2) Bio concentration (3) Bio magnification (4) Air Pollution Minamata disease stands as one of the most harrowing examples of how industrial […]
