Evolution Unit REVIEW

Front

What causes bacteria to become more resistant?

Back

Not taking antibiotics correctly can lead to bacteria becoming more resistant.

Front

What is the struggle for existence against other members of an organism's species called?

Back

Competition.

Front

What can be determined by observing embryos of different organisms?

Back

The organisms share a common ancestry.

Front

How are fossils best described?

Back

Fossils are the preserved remains or evidence of ancient living things.

Front

What does embryology showing similar bud development indicate?

Back

It indicates that organisms have a common ancestor.

Front

What is natural selection?

Back

Natural selection is the process where organisms better adapted to their environment tend to survive and produce more offspring.

Front

Define genetic drift.

Back

Genetic drift is a mechanism of evolution that refers to random changes in the frequency of alleles in a population.

Front

What is gene flow?

Back

Gene flow is the transfer of genetic variation from one population to another.

Front

What is the significance of homologous structures?

Back

Homologous structures indicate common ancestry among different species.

Front

What is the role of mutations in evolution?

Back

Mutations introduce new genetic variations, which can lead to evolutionary changes.