U5T2 Review Part 1

Front

What is a vestigial structure?

Back

A vestigial structure is a body part in a modern-day animal that is no longer needed, such as human ear muscles.

Front

What happened to the dark-colored moth population over time?

Back

The dark-colored moth population increased while the light-colored moth population decreased.

Front

What process is shown when organisms better adapted to their environment tend to survive and produce more offspring?

Back

Natural Selection.

Front

What is convergent evolution?

Back

Convergent evolution occurs when different species develop similar traits due to living in similar environments.

Front

What is divergent evolution?

Back

Divergent evolution is when two or more related species become more dissimilar over time, often due to different environments.

Front

What is a homologous structure?

Back

A homologous structure is an anatomical feature that is similar in different species due to shared ancestry.

Front

What is an analogous structure?

Back

An analogous structure is a body part that has a similar function in different species but evolved independently.

Front

What is the significance of natural selection in evolution?

Back

Natural selection is a key mechanism of evolution, leading to adaptations that enhance survival and reproduction.

Front

How do vestigial structures provide evidence for evolution?

Back

Vestigial structures indicate that species have evolved over time, as these structures were once useful in ancestral forms.

Front

What is the role of variation in natural selection?

Back

Variation among individuals in a population is essential for natural selection, as it provides the traits that may be favored.