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TLS Online TPP Program

#Question id: 4601

DDT was once considered a "silver bullet" that would permanently eradicate insect pests. Instead, DDT is largely useless against many insects. Which of these would have prevented this evolution of DDT resistance in insect pests?

#Section 2: Evolution

  1. All habitats should have received applications of DDT at about the same time.

  2. The frequency of DDT application should have been higher.

  3. None of the insect pests would have genetic variations that resulted in DDT resistance.

  4. DDT application should have been continual.

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TLS Online TPP Program

#Question id: 12448

#Section 1: Ecology

When members of a population move out of a given area, it is called
TLS Online TPP Program

#Question id: 16791

#Section 3: Mathematics and Quantitative Ecology

The mode of a distribution is 24 and the mean is 60. What is its median? 
TLS Online TPP Program

#Question id: 12444

#Section 1: Ecology

The component(s) of species diversity is/are
TLS Online TPP Program

#Question id: 10609

#Section 1: Ecology

The observation that members of a population are uniformly distributed suggests that
TLS Online TPP Program

#Question id: 4607

#Section 2: Evolution

Members of two different species possess a similar-looking structure that they use in a similar way to perform about the same function. Which of the following would suggest that the relationship more likely represents homology instead of convergent evolution?