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TLS Online TPP Program

#Question id: 12142

Regarding the geographic range of a species, which of the following statements is true? 

#Section 2: Evolution
  1. The geographic range is limited by barriers to long-distance dispersal
  2. The geographic range includes all of the areas occupied by members of the species during their entire life history
  3. Individuals of a species are not equally numerous in all parts of the species' geographic range
  4. All of the above
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TLS Online TPP Program

#Question id: 10577

#Section 1: Ecology

The logistic equation above is used to describe the rate of change of a population, N, with time, t, where r is the intrinsic rate of increase and K is the carrying capacity. dn/dt is isoclines when
TLS Online TPP Program

#Question id: 10572

#Section 2: Evolution

In 2005, the United States had a population of approximately 295,000,000 people. If the birth rate was 13 births for every 1,000 people, approximately how many births occurred in the United States in 2005?
TLS Online TPP Program

#Question id: 12439

#Section 1: Ecology

We both want to dine at the same fine restaurant on the same day and at the same time. Unfortunately, there is only one seat left. Quickly assessing the situation, i (discreetly) hit you over the head with the hammer that i carry on the off chance that i might need to use one. I then proceed to the seat and enjoy the meal. This situation is most similar to
TLS Online TPP Program

#Question id: 12960

#Section 5: Applied Ecology & Evolution

The Norway rat (Rattus Norvegicus), a widespread pest, was controlled for about a decade by the anticoagulant warfarin. This chemical substance, placed in food pellets, is absorbed by the intestinal tract and inhibits the clotting of blood. After a population decline for about 10 years, rat populations increased and stabilized. In one European population, as illustrated in the graph below, the percentage of rats resistant to warfarin has remained fairly stable over a number of years.

Resistance to warfarin is governed by a dominant autosomal gene, R. More than 15 percent of the resistant animals are heterozygous at this locus (Rr). The table below indicates the response to warfarin and relative reproductive fitness of individuals that are homozygous or heterozygous for the dominant gene (R). The RR individuals have a 20-fold increase in vitamin K requirement over individuals.

Fitness is a measure of the reproductive success of a particular genotype. The highest fitness is 1.00.
Which of the following is most likely correct concerning the gene for resistance to warfarin? 
TLS Online TPP Program

#Question id: 15721

#Section 2: Evolution

Lamarck argued that species differ from one another because they have different needs, and so use certain of their organs and appendages. This hypothesis is known as?