Exam 1 Review Flashcards
Reproductive isolation is
the existence of biological factors (barrier) that impede two species from producing viable, fertile offspring.
Speciation
the process by which one species slits into two or more species, is at the focal point of evolutionary theory.
Microevolution
consists of changes in allele frequency in a population over time.
Macroevolution
refers to broad patterns of evolutionary change above the species level
Microevolution and macroevolution
speciation forms a conceptual bridge between these two
For which one of the following observations were both Lamarck’s hypothesis and Darwin’s hypothesis in complete agreement?
Gradual evolutionary change explains why organisms are well-suited to their environments.
What is the term that Darwin used for what is now commonly referred to as “evolution”?
decent with modification
Who were the geologists that help cement Darwin’s views of geologic time?
Hutton and Lyle
Malthus, ever the pessimist, introduced Darwin to theories regarding:
coppetition
Linnaeus introduces the theory of
nested taxomony
A heavy, thick beak on a seed-eating finch is an example of a/an:
adaptation
Which of the following is an example of artificial selection?
trurnspit dogs
Which of the following is an example of convergent evolution?
Flying Squirrels in North America and Sugar Gliders in Australia
Which was an inference that Darwin was able to draw after his trip around the world?
Individuals with more advantageous traits tend to leave more offspring than those that do NOT have that trait.
Which is the smallest unit of evolution?
population
