TLS Online TPP Program

#Question id: 8922


Which statement is most consistent with the hypothesis that the Cambrian explosion was caused by the rise of predator-prey relationships?

#I Life Science/ Life Sciences Group – I-V
  1. increased incidence of worm burrows in the fossil record
  2. increased incidence of hard parts in the fossil record
  3. increased incidence of organic material in the fossil record
  4. increased incidence of fern galls in the fossil record
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TLS Online TPP Program

#Question id: 10685

#SCPH06 I Botany

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


 

TLS Online TPP Program

#Question id: 10685

#SCPH28 | Zoology

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


 

TLS Online TPP Program

#Question id: 10686

#SCPH06 I Botany

 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: 10686

#SCPH28 | Zoology

 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: 10687

#SCPH28 | Zoology

V(t) and E(t) are, respectively, prey density and predator density at time t. The densities have dynamics


What will the positive equilibrium densities of both predator and pray at isocline

TLS Online TPP Program

#Question id: 10688

#SCPH06 I Botany

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?