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

dV (t) / dt = V - 0.01 VE

dE (t) / dt = 0.002 VE - E

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

#Question id: 3351

#Unit 9. Evolution & Diversity of Life Forms

In pre-industrial period in England, most peppered moths had light coloration. During industrial revolution, many lichens died out and trees became blackened by soot from factories and interestingly, dark colored moths were predominantly seen. Which of the following observation is incorrect about above selection?

#Question id: 3352

#Unit 9. Evolution & Diversity of Life Forms

The kind of natural selection in A and B are

#Question id: 3353

#Unit 9. Evolution & Diversity of Life Forms

#Question id: 3354

#Unit 9. Evolution & Diversity of Life Forms

What kind of speciation would you call this?

#Question id: 3355

#Unit 9. Evolution & Diversity of Life Forms

Speciation in ancestor as following way

A- Non-swimming populations separated by a river may gradually diverge because there is no gene flow between them

B- Plants commonly exhibit polyploidy, meaning they contain three or more sets of chromosomes

C- The tendency for two species to diverge in morphology and thus resource use because of competition

Which of the following above condition allowed to which type of speciation?

#Question id: 3356

#Unit 9. Evolution & Diversity of Life Forms

Which of the following above way not cause sampling error in succeed generation?