Front

What is natural selection?

Back

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

Front

What does the fossil record indicate about species?

Back

The fossil record provides evidence that older species gave rise to more-recent species.

Front

What is microevolution?

Back

Microevolution refers to small-scale evolutionary changes within a species, such as changes in allele frequencies.

Front

What is an example of microevolution?

Back

The evolution of pesticide resistance in pests is an example of microevolution.

Front

What role does genetic diversity play in natural selection?

Back

Genetic diversity allows for a greater chance of survival as individuals with varied traits can adapt to changing environments.

Front

How do environmental changes affect species?

Back

Environmental changes can lead to natural selection, where individuals better suited to the new conditions survive and reproduce.

Front

What is the significance of pelvic bones in baleen whales?

Back

The presence of pelvic bones in baleen whales indicates that they evolved from four-legged animals.

Front

What is the outcome when a species adapts to its environment?

Back

When a species adapts to its environment, it is more likely to survive and reproduce, leading to evolutionary changes.

Front

What is the relationship between natural selection and evolution?

Back

Natural selection is a mechanism of evolution, driving the process by which species change over time.

Front

What happens to the population of light moths when pollution decreases?

Back

As pollution decreases, light moths become more successful in surviving and reproducing compared to dark moths.