Evolution Review

Front

What is a fossil?

Back

Fossils are remains or traces of once-living organisms found in layers of rock or ice, or in amber.

Front

What characteristic of populations is observed when individuals have slight differences in size and color?

Back

Variation.

Front

Why is variation important for survival?

Back

Variation, such as fur color that blends into the environment, helps organisms survive by providing camouflage from predators.

Front

What type of evidence suggests that two species are closely related?

Back

DNA evidence.

Front

What is the likely future change in a population of mice if one color provides better camouflage?

Back

The white mice will go extinct.

Front

What is evolution?

Back

Evolution is the process by which populations of organisms change over generations through variations and natural selection.

Front

What is natural selection?

Back

Natural selection is the process where organisms better adapted to their environment tend to survive and produce more offspring.

Front

What is adaptation?

Back

Adaptation is a trait that helps an organism survive and reproduce in its environment.

Front

What is variation in a population?

Back

Variation refers to the differences in traits among individuals in a population.

Front

What is the significance of DNA evidence in studying evolution?

Back

DNA evidence helps scientists determine the genetic similarities and differences between species, indicating their evolutionary relationships.