TLS Online TPP Program

#Question id: 12441


As the biomass of the individual plants making up a population increases

#Section 1: Ecology
  1. Population density will increase. 
  2. The growth rate of seedlings will increase. 
  3. Density-independent mechanisms become more important than density-dependent mechanisms. 
  4. Competition will occur at lower population densities
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TLS Online TPP Program

#Question id: 4714

#Section 2: Evolution

After the drought of 1977, researchers hypothesized that on the Galápagos Island Daphne Major, medium ground finches with large, deep beaks survived better than those with smaller beaks because they could more easily crack and eat the tough Tribulus cistoides fruits. A tourist company sets up reliable feeding stations with a variety of bird seeds (different types and sizes) so that tourists can get a better look at the finches. Which of these events is now most likely to occur to finch beaks on this island?

TLS Online TPP Program

#Question id: 4715

#Section 2: Evolution

Claytonia virginica is a woodland spring herb with flowers that vary from white, to pale pink, to bright pink. Slugs prefer to eat pink-flowering over white-flowering plants (due to chemical differences between the two), and plants experiencing severe herbivory are more likely to die. The bees that pollinate this plant also prefer pink to white flowers, so that Claytonia with pink flowers have greater relative fruit set than Claytonia with white flowers. A researcher observes that the percentage of different flower colors remains stable in the study population from year to year. Given no other information, if the researcher removes all slugs from the study population, what do you expect to happen to the distribution of flower colors in the population over time?

TLS Online TPP Program

#Question id: 4716

#Section 2: Evolution

Which of the following is correct match?

AWallaceI Changes in allele frequency due to random genetic drift
BSewall WrightII Evolution by natural selection
CCarl WoeseIII hybrid sterility
DHaldane's ruleIV DNA sequencing led to molecular phylogenetics

TLS Online TPP Program

#Question id: 4717

#Section 2: Evolution

 If Darwin had been aware of genes and their typical mode of transmission to subsequent generations, with which statement would he most likely have been in agreement?

TLS Online TPP Program

#Question id: 15717

#Section 2: Evolution

 In The Origin of Species, Darwin propounded two major hypotheses:

TLS Online TPP Program

#Question id: 15718

#Section 2: Evolution

Christians interpreted the biblical account of Genesis literally and concluded that each species had been created individually by God in the same form it has today. This belief is known as