Unit 7: Evolution & Classification Pre/Post-Check

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 is the main result of natural selection?

Back

Increased frequency of beneficial traits.

Front

What role do mutations play in evolution?

Back

Mutations create genetic variation, which is essential for evolution.

Front

What is a cladogram?

Back

A cladogram is a diagram that shows the evolutionary relationships among various biological species based on similarities and differences in their physical or genetic characteristics.

Front

How do environmental changes affect species survival?

Back

Environmental changes can lead to extinction if species cannot adapt quickly enough.

Front

What is extinction?

Back

Extinction is the end of an organism or a group of organisms, typically due to environmental changes or failure to adapt.

Front

What is genetic variation?

Back

Genetic variation refers to the diversity in gene frequencies within a population, which is crucial for natural selection.

Front

What is speciation?

Back

Speciation is the evolutionary process by which populations evolve to become distinct species.

Front

What is the significance of biodiversity?

Back

Biodiversity is important for ecosystem resilience, providing a wider range of resources and stability.

Front

What is adaptation?

Back

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