5 Written Questions

1. inability of the offspring of two different species to reproduce
2. scientist who constructed the idea of Natural Selection as a mechanism for Evolution
3. two species evolving adaptations in response to each other's adaptations
4. a species that diverged into 2 or more different species; implies relatedness
5. the average phenotype has the highest fitness, and the extreme phenotypes are selected out

5 Matching Questions

1. vestigial structures
2. genetic variation
3. homologous structures
4. allele/gene frequency
5. microevolution

1. a the prevalence of a certain gene is found in a population
2. b anatomically similar structures in different species that serve a different function in each, like forelimbs of horses and humans
3. c the small differences among organisms in a population that ensure some individuals will survive
4. d changes in allele frequency within a population
5. e anatomical structures without apparent function; thought to have a function in ancestral species

5 Multiple Choice Questions

1. causes traits to occur in a population due to humans choosing which individuals will breed
   1. stabilizing selection
   2. natural selection
   3. directional selection
   4. artificial selection
2. warning coloration of poisonous animals
   1. population
   2. competition
   3. adaptation
   4. aposematic
3. individuals of different species cannot reproduce because they are not prepared to mate at the same time
   1. temporal isolation
   2. behavioral isolation
   3. natural selection
   4. sexual selection
4. both extreme phenotypes have high fitness, and the average phenotype is selected out
   1. sexual selection
   2. disruptive selection
   3. artificial selection
   4. directional selection
5. unrelated species evolve similar adaptations due to their similar environments
   1. coevolution
   2. convergent evolution
   3. microevolution
   4. macroevolution

5 True/False Questions

1. gamete incompatibility → sperms and eggs of different species cannot fertilize

   True        False

2. sexual selection → causes traits to occur in a population because of choices of mates

   True        False

3. competition → relationship among organisms due to limited resources

   True        False

4. fossils → remains of organisms

   True        False

5. macroevolution → changes in allele frequency within a population

   True        False