TLS Online TPP Program

#Question id: 8789


If additional DNA sequence evidence shows that yeast genes for synthesizing proteins are more similar to protein-synthesizing genes in bacteria than those in archaea, a modern systematist would ________.

#Unit 9. Diversity of Life Forms
  1. redraw the phylogeny to show eukaryotes sharing a more recent common ancestor with bacteria than archaea
  2. redraw the phylogeny to show more recent common ancestry between archaea and yeast than between eukaryotes and archaea
  3. retain the phylogeny that shows a more recent common ancestor between eukaryotes and archaea
  4. retain the phylogeny that shows a more recent common ancestor between bacteria and archaea
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TLS Online TPP Program

#Question id: 12466

#Unit 10. Ecological Principles

Which of the following is a density-independent factor that could limit a population of high-altitude butterflies?

TLS Online TPP Program

#Question id: 12467

#Unit 10. Ecological Principles

Review the formula for effective population size. Imagine a population of 1,000 small rodents. Of these, 300 are breeding females, 300 are breeding males, and 400 are nonbreeding  juveniles.  What is the effective  population size?

TLS Online TPP Program

#Question id: 12468

#Unit 10. Ecological Principles

If the sex ratio in a population is significantly different from 50:50, then which of the following will always be true? 

TLS Online TPP Program

#Question id: 12469

#Unit 10. Ecological Principles

A population of strictly monogamous swans consists of 40 males and 10 females. What is the effective population size (ne) for this population?

TLS Online TPP Program

#Question id: 12470

#Unit 10. Ecological Principles

An ecologist recorded 12 white-tailed deer, Odocoileus virginianus, per square mile in one woodlot and 20 per square mile on another woodlot. What was the ecologist comparing?

TLS Online TPP Program

#Question id: 12471

#Unit 10. Ecological Principles

To measure the population density of monarch butterflies occupying a particular park, 100 butterflies are captured, marked with a small dot on a wing, and then released. The next day, another 100 butterflies are captured, including the recapture of 20 marked butterflies. One would estimate the population to be