Evolution Review

Front

What does Darwin's theory of evolution suggest?

Back

Species change over time.

Front

What is an example of a vestigial structure?

Back

The tailbone of a human.

Front

Why are similar looking birds now considered different species?

Back

Their environments changed over time, so they had to adapt to those environments.

Front

What are structures with the same bone structure but different functions called?

Back

Homologous structures.

Front

What concept did Lamarck propose about evolution?

Back

Differences among the traits of organisms happen as a result of the actions of organisms as they use or do not use body structures.

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 common ancestor?

Back

An ancestral species from which multiple species have evolved.

Front

What are adaptive traits?

Back

Characteristics that enhance an organism's ability to survive and reproduce in a specific environment.

Front

What is the significance of fossil records in evolution?

Back

Fossil records provide evidence of past life forms and show how species have changed over time.

Front

What is the difference between homologous and analogous structures?

Back

Homologous structures share a common ancestry, while analogous structures have similar functions but different evolutionary origins.