5 Written Questions

1. structures that are shared by related species and that have been inherited from a common ancestor
2. states that allele frequencies in a population should remain constant unless one or more factors cause those frequencies to change
3. nature provides the variations, and humans select those they find useful
4. form of reproductive isolation in which two populations are separated by geographic barriers such as rivers, mountains, or bodies of water, leading to the formation of two separate subspecies
5. the process by which organisms with variations most suited to their local environment survive and leave more offspring

5 Matching Questions

1. species
2. sexual selection
3. behavioral isolation
4. allele frequency
5. polygenic traits

1. a when individuals select mates based on heritable traits, such as size, strength, or coloration
2. b traits that are controlled by two or more genes
3. c the number of times an allele occurs in a gene pool, compared to the total number of alleles in that pool for the same gene
4. d form of reproductive isolation in which two populations develop differences in courtship rituals or other behaviors that prevent them from breeding
5. e a population or group of populations whose members can interbreed and produce fertile offspring

5 Multiple Choice Questions

1. any heritable characteristic that increases an organism's ability to survive and reproduce in its environment
   1. species
   2. adaptation
   3. evolution
   4. speciation
2. the formation of a new species
   1. speciation
   2. species
   3. adaptation
   4. evolution
3. the process of change over time
   1. fossils
   2. adaptation
   3. speciation
   4. evolution
4. the study of where organisms live now and where they and their ancestors lived in the past
   1. species
   2. fitness
   3. gene pool
   4. biogeography
5. a trait controlled by only one gene
   1. sexual selection
   2. polygenic traits
   3. gene pool
   4. single gene trait

5 True/False Questions

1. genetic drift → consists of all the genes, including all the different alleles for each gene, that are present in the population

   True        False

2. gene pool → consists of all the genes, including all the different alleles for each gene, that are present in the population

   True        False

3. vestigial structures → body parts that share common function, but not structure

   True        False

4. stabilizing selection → takes place when individuals near the center of the curve have higher fitness than individuals at either end

   True        False

5. reproductive isolation → separation of a species or population so that they no longer interbreed and evolve into two separate species

   True        False