The utilization or consumption efficiency of herbivores is highest in (1) plankton communities of ocean waters. (2) mature temperate forests. (3) managed grasslands. (4) managed rangelands. Introduction Herbivore utilization […]
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CSIR NET Life Science Previous Year Questions and Solution on Ecology
Why Does More Energy Flow to Herbivores in the Open Ocean Than in Forests?
A much greater proportion of energy fixed by autotrophs is transferred to the herbivore level in the open ocean ecosystem than in a forest ecosystem because (1) aquatic autotrophs are […]
CSIR NET Life Science Previous Year Questions and Solution on Ecology
What Is the Correct Order for the Rate of Decomposition of Litter Constituents?
Which of the following is the correct decreasing order for the rate of decomposition of litter constituents? (1) Hemicellulose, cellulose, lignin, phenol (2) Cellulose, hemicellulose, phenol, lignin (3) Hemicellulose, cellulose, […]
CSIR NET Life Science Previous Year Questions and Solution on Ecology
Which Factors Contribute to Ecosystem Stability? Understanding the Role of Omnivores and Food Web Structure
Which of the following is likely to contribute to the stability of an ecosystem? (1) High number of specialists (2) Fewer number of functional links (3) More omnivores (4) Linear […]
CSIR NET Life Science Previous Year Questions and Solution on Ecology
Which Ecosystem Delivers Autotroph-Fixed Energy to Primary Carnivores the Fastest?
In which ecosystem is the autotroph-fixed energy likely to reach the primary carnivore level in the shortest time? (1) Grassland (2) Temperate deciduous forest (3) Ocean (4) Tropical rain forest […]
CSIR NET Life Science Previous Year Questions and Solution on Ecology
Which Ecosystem Relies Most on the Detrital Pathway for Energy Flow
In which ecosystem is the detrital pathway of energy flow most important? (1) Lakes (2) Grasslands (3) Tropical rain forests (4) Oceans Introduction Energy flow in ecosystems occurs through […]
CSIR NET Life Science Previous Year Questions and Solution on Ecology
Does Connectance Increase or Decrease with Species Richness in Food Webs
Below is a table showing the number of species and actual food web links observed in three different ecosystems. By calculating connectance as a measure of relative complexity of food […]
CSIR NET Life Science Previous Year Questions and Solution on Ecology
Understanding Food Web Complexity: How to Quantify and Identify Incorrect Representations
38. The complexity of a food web in a community is quantified using certain parameters which are defined below. Which of the following is an INCORRECT representation? Introduction Food […]
CSIR NET Life Science Previous Year Questions and Solution on Ecology
Which Ecosystem Transfers Radioactive Carbon to Primary Carnivores the Fastest?
In a field experiment, autotrophs are provided a 14C- labelled carbon compound for photosynthesis. Radioactivity (14C) levels were then monitored at regular intervals in all the trophic levels. In which […]
CSIR NET Life Science Previous Year Questions and Solution on Ecology
Which Ecosystem Has the Maximum Energy Flow Between Trophic Levels?
The ecosystem having maximum energy from one trophic level to another is (1) Tropical rain forest (2) Ocean (3) Desert (4) Temperate Deciduous forest Introduction Energy flow is a […]
