Unit 8: Evolution Test Review

Front

What is evolution?

Back

Evolution is the process through which species change over time through variations and natural selection.

Front

What is natural selection?

Back

Natural selection is the mechanism by which individuals with favorable traits are more likely to survive and reproduce.

Front

Define homologous structures.

Back

Homologous structures are body parts in different species that have similar internal structures but may serve different functions.

Front

Define analogous structures.

Back

Analogous structures are body parts in different species that serve similar functions but have different internal structures.

Front

What is coevolution?

Back

Coevolution is the process where two or more species evolve in response to each other, often leading to specialized relationships.

Front

What is genetic drift?

Back

Genetic drift is a change in the frequency of a gene variant in a population due to random sampling.

Front

What is speciation?

Back

Speciation is the evolutionary process by which populations evolve to become distinct species.

Front

What is punctuated equilibrium?

Back

Punctuated equilibrium is a theory that proposes that species remain stable for long periods, interrupted by brief periods of rapid change.

Front

What is gradualism?

Back

Gradualism is the theory that evolution occurs slowly and steadily over long periods.

Front

What is a common ancestor?

Back

A common ancestor is an ancestral species from which two or more species have evolved.