The demographic transition model depicts demographic changes from high- to low-level births and deaths in five stages

Stage 1 is characterized by total population numbers are low and the high birth rate is balanced by the high death rate.

B) Stage 2 is characterized by high population growth rate is results of high birth rate however, decline death rate

C) Stage 4 is characterized by decline in the proportion of the population in the reproductive age group and these changes stabilizes population size

D) Stage 3 is characterized by falling birth rates and death rates and population growth rate is zero due to the less numbers of people in the reproductive age group

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#Question id: 10728

#Section 1: Ecology

Following table shows the number of individuals of different species in two communities, X and Y. Use Jaccard index determine the degree of similarity between X and Y community? 

     

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#Question id: 12757

#Section 5: Applied Ecology & Evolution

Biomanipulation can best be described as

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#Question id: 11357

#Section 1: Ecology

In the Lotka-Volterra population models for predator and prey, what is the consequence of an increased birth rate of prey?

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#Question id: 10598

#Section 1: Ecology

In a wild life reserve, we have two species of mammal. Species A reproduce thrice a year and produced 6-10 offspring per litter. Species B reproduce once in 2-3 year and produced 1-2 offspring during each cycle of reproduction. Which of the following statement is true?

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#Question id: 5154

#General Aptitude

476**0 is divisible by both 3 and 11. The non zero digits in the hundred’s and ten’s places are respectively