TLS Online TPP Program

#Question id: 12155


Under which of the following conditions do the mathematical models for competition tell us that coexistence of two competing species is most likely? 

#Section 2: Evolution
  1. Coefficients of interspecific competition (A1,2 and A2,1) greater than 1
  2. Coefficients of interspecific competition (A1,2 and A2,1) equal to 1
  3. Coefficients of interspecific competition (A1,2 and A2,1) less than 1
  4. None of the above situations would lead to coexistence
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TLS Online TPP Program

#Question id: 10682

#Section 2: Evolution

if 30 individuals of species 2 take up the same amount of resources as 5 individual of species 1 then the per capita competitive effects on species 1 of species 2 is

TLS Online TPP Program

#Question id: 10683

#Section 2: Evolution

Which of the following interaction shown in figure

TLS Online TPP Program

#Question id: 10684

#Section 2: Evolution

Which one of the following statements is INCORRECT?

TLS Online TPP Program

#Question id: 10685

#Section 2: Evolution

figure show population growth in two species A ana B . Interaction between


 

TLS Online TPP Program

#Question id: 10686

#Section 2: Evolution

 Following figure are shown figure of predator prey model 


Following some observation are given

A) The number of prey, N, increase at low predator densities, P, and decrease at high predator densities

B) Prey zero isoclines is depends on the ratio of the growth rate of prey to the capture efficiency of the predators

C) Number of predator needed for prey isoclines is depends on the ratio of the death rate of predators to the conversion efficiency of predators

D) Number of predator for prey isoclines depends on the ratio of the death rate of prey to the conversion efficiency of predators

Which of the above observation are true?


TLS Online TPP Program

#Question id: 10688

#Section 2: Evolution

For two species A and B in competition, the carrying capacities, competition coefficients, per capita growth rate and population size are

KA = 1000           KB = 1200    α of B= 1     β of A= .5       rB= .5         r A= .3                

AN= 500                  BN= 200

According to the Lotka-Volterra model, what is growth rate of species A?