Do Now: Natural Selection/Evolution Exam 12/10

Front

What is 'survival of the fittest'?

Back

The concept that organisms suited to their environment can survive and reproduce successfully.

Front

Which beetle population has higher fitness in a dark environment?

Back

The brown beetle population.

Front

How can we determine the age of a fossil?

Back

By examining the depth of the fossil and studying the surrounding rock types.

Front

What trait became less common in a dark pond environment?

Back

Light fish became less common due to natural selection.

Front

Why do sea turtles and fish lay over 100 eggs at once?

Back

To increase the survival rate of their offspring, as most do not reach adulthood.

Front

What is natural selection?

Back

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

Front

Define evolution.

Back

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

Front

What is a fossil?

Back

The preserved remains or traces of a once-living organism.

Front

What does fitness mean in an evolutionary context?

Back

The ability of an organism to survive and reproduce in its environment.

Front

What is adaptation?

Back

A trait that helps an organism survive and reproduce in its environment.