Fish, penguin and Dolphin are independently evolved similar traits as a result of having to adapt to similar environments or ecological niches.

A. On a molecular level, this can happen due to random mutation in unrelated taxon to adaptive changes

B. This is the example of divergent evolution, occurred due to similar group of organisms inhabiting different environments

C. Similar phenotype are produced by identical change in orthologous gene

D. This is the example of convergent evolution, occurred due to similar group of organisms inhabiting different environments

Which of the following is the correct combination?

#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

#Question id: 10683

#Section 2: Evolution

Which of the following interaction shown in figure

#Question id: 10684

#Section 2: Evolution

Which one of the following statements is INCORRECT?

#Question id: 10685

#Section 2: Evolution

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

#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?

#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?