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Biology McKenzie
Bio.
| Term | Definition |
|---|---|
| Natural Selection | the process in which individuals that are better suited to their environment survive and reproduce most successfully, through overproduction, variation, and overproduction in the population |
| Variation | all of the different traits or characteristics found in a population |
| Genetic Drift | when frequency of alleles change because of random or chance events, NOT an example of natural selection |
| Diversity | all the different species found in the environment |
| Gene Pool | all of the combined genes, including all the different alleles, that are present in a population |
| Reproductive Isolation | when two groups of the same species are unable to breed with each other |
| Temporal Isolation | when two species will not reproduce because they breed during different times of the year or day |
| Geographic Isolation | when a species is separated by another species because of some natural boundary |
| Behavioral Isolation | when two species will not reproduce because they don't recognize the mating rituals of the other |
| Adaption | an inherited characteristic that increased an organisms chance for survival |
| Fitness | an individuals ability to survive and reproduce |
| Speciation | the evolution of a new species that occurs when individuals are unable to breed |
| Artificial Selection | when humans decide which traits are beneficial and should be passed on from generation to generation |
| Mutations | random changes in the DNA sequence that naturally occur and help to produce genetic diversity |
| Frequency Of Alleles | the amount or percentage of genes or traits found in the population or gene pool |
| Common Descent | the idea that all species have the same ancient ancestors |