Evolution Practice # 1

Front

Definition: adaptation

Back

Inherited characteristic that increases chances of survival.

Front

A well-tested concept that explains a wide range of observations is called a(an):

Back

Scientific theory.

Front

Which term describes the process by which a single species evolves into several different forms that live in different ways?

Back

Adaptive radiation.

Front

Definition: competition

Back

A growing population causes a scarcity of resources.

Front

The Asian shore crab invaded parts of the eastern coast of the United States about 15 years ago. The Asian shore crab preys on blue mussels. In the time since the Asian shore crab arrived, the average shell thickness of the blue mussel population has increased. Which of the following is the most likely reason that this increase in shell thickness has occurred?

Back

Blue mussels with thick shells survive and reproduce more successfully than mussels without thick shells.

Front

Definition: natural selection

Back

The process by which organisms with traits well suited to their environment survive and reproduce at a greater rate.

Front

What is the term for the variety of life in the world or in a particular habitat or ecosystem?

Back

Biodiversity.

Front

What is the process called when two or more species influence each other's evolution?

Back

Co-evolution.

Front

Definition: mutation

Back

A change in the DNA sequence that can lead to new traits.

Front

What is the term for the gradual change in a species over time?

Back

Evolution.