Consider predators with a choice between two prey types: a big prey 1 which has energy value E1, handling time h1, and search time S1 and; a small prey 2 […]
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CSIR NET Life Science Previous Year Questions and Solution on applied ecology
Ozone’s Dual Role: Why Atmospheric and Stratospheric Ozone Have Opposite Effects on the Biosphere
Correct statement regarding the effect of ozone on biosphere is (1) Both atmospheric and stratospheric ozone is beneficial (2) Both atmospheric and stratospheric ozone is harmful (3) Atmospheric ozone is […]
CSIR NET Life Science Previous Year Questions and Solution on applied ecology
What Is Rachel Carson’s ‘Silent Spring’ About? Exploring Its Connection to Pesticides and Environmental Pollution
The book by Rachel Carson –‘Silent Spring’ is related with (1) Environmental pollution (2) Use of pesticides in agriculture (3) Flowering in spring season (4) Effect of pesticides on non-target […]
CSIR NET Life Science Previous Year Questions and Solution on Ecology
What Is the Functional Response of Predators? Definition and Ecological Importance
Functional response of predators means (1) the number of prey successfully attacked per predator as a function of prey density (2) Regulation of predator population by availability of prey (3) […]
CSIR NET Life Science Previous Year Questions and Solution on Ecology
Criteria for Choosing Prey-Predator Relationships in Long-Term Biological Control
What should be the criteria for choosing prey-predator relationship for long term of biological control? (1) High host specificity and high virulence (2) low host specificity and high virulence (3) […]
CSIR NET Life Science Previous Year Questions and Solution on Ecology
What Determines Prey Profitability for Predators? The Role of Energy Content and Foraging Time
Profitability of prey for predator lies in its energy content and (1) Prey defense (2) Palatability (3) Foraging time (4) prey morphology Understanding Prey Profitability Prey profitability refers to the net […]
CSIR NET Life Science Previous Year Questions and Solution on Ecology
What Is the Main Function of Mycorrhiza? Understanding Its Role in Plant Growth
20. The main function of mycorrhiza is (1) Absorption of water (2) Absorption of phosphates (3) Protection from bacteria (4) Defense from insects The Core Function: Enhanced Nutrient Absorption The primary […]
CSIR NET Life Science Previous Year Questions and Solution on Ecology
Lotka-Volterra Competition Model: Predicting the Outcome for Competing Species
For two species A and B in competition, the carrying capacities and competition coefficients are KA = 150 KB = 200 α = 1 β = 1.3 According to the […]
CSIR NET Life Science Previous Year Questions and Solution on Ecology
Lotka-Volterra Competition Model: When Does One Species Always Win?
The Lotka-Volterra model of competition between species A and B is given by the equations Species A: dNA/dt = rANA (KA-NA-αNB/KA) Species B: dNB/dt = rBNB (KB-NB-βNA/KB) Given that species […]
CSIR NET Life Science Previous Year Questions and Solution on Ecology
Understanding the Lotka-Volterra Competition Coefficient: What Does α₁₂ < 1 Mean?
15. In Lotka and Voltera’s two species competition model: Where N represents population size, r growth rate and K maximum carrying capacity for species 1 and (2) The inter-specific competition […]
