S10 - Mechanisms of Evolution

Front

A few deer wander out of their native woods into a completely new park where no deer had ever been before. They go on to create an entirely new population.

Back

Genetic Drift

Front

During gestation (pregnancy), a developing male pig had a change in his genetic code. The result was that he was able to walk and do karate.

Back

Mutation

Front

Five hundred years after the deer had established a flourishing population in the park, a few of them venture back to their original woods and have babies with the deer there.

Back

Gene flow

Front

What does the image represent? Options: Founder effect, Bottleneck effect, Natural Selection, Mutations

Back

Natural Selection

Front

What does the image represent?

Back

Gene flow

Front

Which organisms are most likely to survive?

Back

the best adapted

Front

Gene Flow tends to ___________ genetic variation (diversity)

Back

Increase

Front

Which of the following is NOT an example of natural selection? Options: People selectively breeding hamsters., Insect populations developing resistance to certain pesticides., Bacteria becoming resistant to antibiotics., Male birds of certain species developing colorful feathers to attract female mates.

Back

People selectively breeding hamsters.

Front

What mechanism of evolution is demonstrated by bats in Texas developing longer hang claws for better fitness in rocky regions?

Back

Natural Selection

Front

A type of genetic drift in which small groups of organisms separate from a larger population and form new small colonies.

Back

Founder Effect