1. When an allele becomes more common in a species, whatchanges?
| A. gene flow |
| B. the gene pool |
| C. the type of species |
| D. the number of chromosomes |
2. Which word describes what happens when different populationsof the same species develop different allele frequencies?
| A. convergence |
| B. polyploidy |
| C. divergence |
| D. hybridization |
3. What is a biological race?
| A. a population in a species in the process of divergence |
| B. a subset of a species in a particular location |
| C. a human phenotype |
| D. a unique species that closely resembles another |
