| A | B |
| Disruptive selection | Extreme types are favored |
| Balanced Polymorphism | Disruptive selection in which one population is divided into two distinct groups |
| Directional Selection | One phynotype replaces another in the gene pool |
| Sexual selection | selection based on secondary sex characteristics and comptetion for mates |
| Sexual dimorphism | Differences in apperences between the sexes. |
| Insectecide resistance is an example of... | Directional selection |
| Swiss starlings that lay 5 eggs are most successful is an example of... | Stabilizing selection |
| Mice that are Black or White survive at a higher rate than grey mice is an example of... | Balanced polymorphism |
| Peppered moths were white than the black allele was favored is an example of.... | Directional selection |
| Male elephant seals fighting for supremancy of a harem is an example of | Sexual selection |
| Darwin breed pidgions for different traits | Artificial selection |
| Balanced Polymorphism, Geographic Variation, Sexual Reproduction, Outbreeding, Diplody, hererozgote Advantage, Frequency-dependent selection, and Evolutionary neutral traits are all.... | Sources of variation in a population |
| Geographic Variation | North- south cline |
| Sexual reproduction | causes recomination and shuffling of alleles durring meiosis and fertilization |
| Independent assortment of chromosomes | metaphase 1 recomining unlinked genes |
| Crossing-over | exchange of genetic material of homologous chromosomes during meiosis 1 |
| random fertilization | one lucky ovum fertilized by one lucky sperm |
| Outbreeding | mating organisms of the same species that are not closely related |
| Inbreeding | mating organisms of one species that are closely related |
| Alpha male chases away younger mature males results in | outbreeding |