WorksheetsMechanisms of Evolution
Total questions: 10
Worksheet time: 8mins
A population is
a group of similar species in different areas
a group of the same species in the same geographic area.
a group of several species in the same geographic area
a group of several species along with their abiotic factors in a small area.
Over the years, white mice became extinct and darker mice survived. This is
stabilizing selection
directional selection
disruptive selection
due to exercise
Average phenotypes are favored in the environment, while extremes have lower survival rates.
seasonal selection
distruptive selection
directional selection
stabilizing selection
61% accuracy: In rock pocket mice, for thousands of years the dominant fur color is lighter colored fur. Occasionally a mouse will be born with a change in the MC1R gene, which causes a darker fur color. This change is an example of a(n)...
gene flow
natural selection
mutation
artificial selection
Researchers studying medium ground finches on the island of Daphne Major in the Galapagos Islands collected the data below on the survival rates of finches with different sized beaks over a three-year period that included a drought.
Which statement about the finches in this environment is best supported by the data?
Finches with large beaks are more fit for the environment than finches with small beaks are
Finches with large beaks had more genes than the other finches did.
Finches with small beaks reproduce more quickly than finches with large beaks.
Finches with medium beaks had more mutations than the other finches did.
Reindeer from a rancher in Alaska escape from their pen during an enormous snow storm. After their escape, they mate with wild caribou that are migrating across the land. The offspring of these have traits for short legs and have tame behavior.
Gene Flow
Genetic Drift
Non-Random Mating
Natural Selection
Insects become resistant to pesticides very quickly, sometime in one generation. If an insect is resistant to the chemical, most of the offspring will also be resistant. Considering that insect generations can be a matter of weeks, insects in an area can become immune to a chemical within months.
Mutation
Natural Selection
Genetic Drift
Gene Flow
What do we call a change in the genome over time?
Evolution
Adaptation
Extinction
Environmental influences
