Feathers either play a role, or may have played a role, in _____.
  • extended hops, courtship, flight, and gliding.
  • near-boiling water, high pressure, very salty water, oxygen-free environments
  • photosynthesis
  • They live in extreme habitats.
The different finch species found on the Galápagos Islands probably arose as a result of _____.
  • adaptive radiation(Why: The finches that initially immigrated to the Galapagos Islands experienced little competition, the result of which was the promotion of speciation.
  • adaptive radiation(Why: mass extinctions reduce competition and allow for periods of rapid speciation.)
  • adaptive radiation(Why: the appearance of an evolutionary novelty may allow for the exploitation of previously unexploited niches.)
  • adaptive radiation(Why: Adaptive radiation is rapid speciation under conditions in which there is little competition.
_____ is rapid speciation under conditions in which there is little competition.
  • adaptive radiation(Why: mass extinctions reduce competition and allow for periods of rapid speciation.)
  • adaptive radiation(Why: The finches that initially immigrated to the Galapagos Islands experienced little competition, the result of which was the promotion of speciation.
  • adaptive radiation(Why: Adaptive radiation is rapid speciation under conditions in which there is little competition.
  • adaptive radiation(Why: the appearance of an evolutionary novelty may allow for the exploitation of previously unexploited niches.)
Which of the following statements about reinforcement is true?
  • They live in extreme habitats.
  • Reinforcement is a type of natural selection.(Why: Reinforcement is a type of natural selection called disruptive selection, which favors extreme phenotypes over intermediate phenotypes.)
  • near-boiling water, high pressure, very salty water, oxygen-free environments
  • adaptive radiation(Why: The finches that initially immigrated to the Galapagos Islands experienced little competition, the result of which was the promotion of speciation.
Mass extinctions create conditions that promote _____.
  • adaptive radiation(Why: the appearance of an evolutionary novelty may allow for the exploitation of previously unexploited niches.)
  • adaptive radiation(Why: The finches that initially immigrated to the Galapagos Islands experienced little competition, the result of which was the promotion of speciation.
  • adaptive radiation(Why: mass extinctions reduce competition and allow for periods of rapid speciation.)
  • adaptive radiation(Why: Adaptive radiation is rapid speciation under conditions in which there is little competition.
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