Unit 8: Microevolution

4. What a jerboa has developed when they begin to have longer ears over time since they allow them to increase their fitness in arid environments.
7. This type of selection happens when a population of wild dogs whose fur color normally lies on a spectrum from black to white begins to exhibit fur colors for only black and white, the two extremes of the spectrum.
10. This mechanism is exhibited when the allele frequencies of a dolphin population change by coincidence.
12. The mechanism that is exhibited when a salmon population develops an adaptation for shorter fins over time because they help them better survive and reproduce
13. The mechanism that is exhibited when a goose flies away from their population in California and joins a new population of geese in Hawaii.

1. A population of zebras is in _______ when the allele frequencies of their population do not change over 50 years.
2. This type of selection happens when a population of mice whose fur color normally lies on a spectrum from black to white begins to exhibit only the white phenotype over time
3. This type of selection happens when a population of chinchillas whose fur color normally lies on a spectrum from black to white begins to exhibit only a gray phenotype over time, the color that lies in the middle of the two extremes of the spectrum.
5. The name given to a frogs ability to survive, reproduce, and pass off its alleles to future tadpole generations.
6. The mechanism that is exhibited after three ostriches run thousands of miles away from their group and establish a new population
8. This mechanism is exhibited when a volcanic eruption kills a significant portion of the Adelie penguin population
9. The name given to the fraction of non-sickle cell alleles from all the population’s alleles.
11. This mechanism is exhibited when a female bird's eyes are only captivated by a male with shiny blue and yellow feathers