Which of the following organisms may be used as sensitive indicators of air pollution? (1) Members of the Chlorophyta (2) Lichens (3) Photosynthetic bacteria (4) Slime molds Air pollution is […]
Category: CSIR NET Life Science Previous Year Questions and Solution on Ecology
CSIR NET Life Science Previous Year Questions and Solution on Ecology
CSIR NET Life Science Previous Year Questions and Solution on Community Ecology
Ecotones: Identifying the Incorrect Statement
Which one of these statements is NOT CORRECT with respect to ecotones? (1) Intertidal zones and estuaries are two examples of ecotones (2) They are transitional areas of vegetation between […]
CSIR NET Life Science Previous Year Questions and Solution on Community Ecology
Ecotones: Transition Zones with High Species Diversity
Which one of the following statements is correct with reference to ecotones? (1) Ecotones are rich in endemic species and only contain species not found in surrounding ecosystems. (2) Ecotones […]
CSIR NET Life Science Previous Year Questions and Solution on Community Ecology
Simpson’s Diversity Index: Comparing Alpha Diversity in Two Communities
Following table shows the number of individuals of different species in two communities, X and Y. Based on the above data and the Simpson’s Diversity Index which one of the […]
CSIR NET Life Science Previous Year Questions and Solution on Ecology
Understanding Population Pyramids: How Birth and Death Rates Shape Growth Trends
Given below are the population pyramids of three different populations A, B and C depicting the relationship between birth and death rates in each. Based on the population pyramids given […]
CSIR NET Life Science Previous Year Questions and Solution on Community Ecology
Following table shows the presence (+) or absence (-) of five species in three communities (A, B, C): Based on the above, which of the following is the correct order […]
CSIR NET Life Science Previous Year Questions and Solution on Ecology
How Age Structure Reveals Population Decline: Understanding Demographic Trends
105.Among the following which trend shows the decreasing population- (1) More Individual in post reproductive stage (2) More individual in Pre-reproductive stage and reproductive (3) Less Individual in pre- reproductive […]
CSIR NET Life Science Previous Year Questions and Solution on Ecology
Life History Evolution in Rodents: How Predation by Snakes Shapes Growth and Reproduction Strategies
Which of the following life history traits is most likely in a rodent species when snakes prefer to prey upon large, older individuals of the rodent species that grow continuously […]
CSIR NET Life Science Previous Year Questions and Solution on Community Ecology
Which Explanations for Species Richness Patterns Are NOT Valid? A Detailed Analysis
Which of the following is/are NOT valid explanation(s) for the observed pattern of species richness? A. Older communities are more species rich. B. Large areas support more species. C. Natural […]
CSIR NET Life Science Previous Year Questions and Solution on Ecology
Does Stress Affect Offspring Size in Animal Populations? Exploring the Link Between Adult Stress and Offspring Traits
In a particular population A, individuals are under stress and they produce smaller offspring. Based on this, one may conclude that (1) stress in a population affects offspring size but […]
