TLS Online TPP Program

#Question id: 12145


If population size is exactly half of carrying capacity: 

#Section 2: Evolution
  1. The population can more than double in size and still be supported by the environment
  2. The population is growing at its maximum rate
  3. Per capita rate of increase = 0
  4. When it doubles in size, the population will reach the inflection point separating the early accelerating phase of population growth from the later decelerating phase

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TLS Online TPP Program

#Question id: 10630

#Section 1: Ecology

Following is relation between population size with various strategies of species, following is correct figure? 


TLS Online TPP Program

#Question id: 10631

#Section 1: Ecology

To estimate the number of foxes m an area, a researcher conducted a mark-recapture survey. In the fast survey, he caught and marked 90 foxes. In his second survey a week later, he caught 120 foxes of which 40 were marked (recaptures). If you are told that the actual number of foxes in this area is 400, which of the following is a plausible explanation for the anomaly in the researcher's data? 

TLS Online TPP Program

#Question id: 10632

#Section 1: Ecology

Three different population growth pattern related to population density are shown in figure

TLS Online TPP Program

#Question id: 10634

#Section 1: Ecology

Consider a population which is changing from one generation to the next as per the equation N(t) = R*N(t-1), where N(t) represents the size of the population at time t and R is a constant growth parameter. Under what condition is the population likely to go extinct?

TLS Online TPP Program

#Question id: 10635

#Section 1: Ecology

Three important biological parameters – generation time, per capita growth rate (r) and clutch size are a function of the organism‟s body size. Which of the curves (a) or (b) represents the correct relation of each of the parameters to body size?



TLS Online TPP Program

#Question id: 10640

#Section 1: Ecology

Given below is a graphical representation of plant life histories based on Grime's model in which disturbance and competition are the important factors


Which of the following options correctly represents A, B and C, respectively in the figure above?