| A | B |
| Species | a group of individuals that look similar and whose members are capable of producing fertilw offspring in the natural enviornment |
| Morphology | the internal and exturnal appearance of an organism |
| Morphological Species Concept | the idea that organisms can be classified by differences in their appearance |
| Hybrid | the offspring of two morphologically dissimilar organisms |
| Biological Species Concept | the idea that organisms can be classified by their ability to breed with one another |
| Population | all the members of the same species that live in a particular location ar the same time |
| Bell Curve | shape of the graph looks like a bell |
| Genotype | the genetic makeup of an organism |
| Phenotype | the external appearance of an organism |
| Gene Pool | collection of genes for all the traits in a population |
| Allele Frequency | the percentage of a specific allele of a gene in the gene pool |
| Genetic Equilibrium | population in which allele frequencies do not change from generation to generation |
| Hardy-Weinberg Principle | a theory taht states the conditions necesary for gene frequencies to remain stable across generations |