Evolution and Classification test review

Front

What is speciation?

Back

The process by which new species form.

Front

What are the two taxa in a scientific name?

Back

Genus and Species.

Front

What type of trait indicates common ancestry among organisms?

Back

Homologous trait.

Front

What is a dichotomous key used for?

Back

To identify organisms based on a series of choices that lead to the correct name.

Front

What does stabilizing selection do in a population?

Back

It favors average traits and reduces variation.

Front

Define evolution.

Back

The change in the heritable characteristics of biological populations over successive generations.

Front

What is natural selection?

Back

The process where organisms better adapted to their environment tend to survive and produce more offspring.

Front

What is a homologous structure?

Back

Anatomical features in different species that share a common ancestry.

Front

What is the difference between homologous and analogous traits?

Back

Homologous traits arise from common ancestry, while analogous traits arise from convergent evolution.

Front

What is the significance of genetic variation in evolution?

Back

It provides the raw material for natural selection to act upon.