Unit 7: Evolution

Front

What is evolution?

Back

Evolution is the process through which species change over time through variations and natural selection.

Front

What is natural selection?

Back

Natural selection is the mechanism by which individuals with favorable traits are more likely to survive and reproduce.

Front

What is a mutation?

Back

A mutation is a change in the DNA sequence that can lead to variations in traits.

Front

What is antibiotic resistance?

Back

Antibiotic resistance occurs when bacteria evolve to survive exposure to antibiotics that once killed them.

Front

What is a population in biological terms?

Back

A population is a group of individuals of the same species living in a specific area.

Front

What is the smallest unit that natural selection can change?

Back

A population is the smallest unit that natural selection can change.

Front

What is punctuated equilibrium?

Back

Punctuated equilibrium is the hypothesis that evolution occurs in rapid bursts followed by long periods of stability.

Front

What is gradualism?

Back

Gradualism is the idea that evolution occurs slowly and steadily over time.

Front

What role do variations play in evolution?

Back

Variations provide the raw material for natural selection to act upon, leading to evolution.

Front

How do environmental factors influence evolution?

Back

Environmental factors can affect which traits are favorable, thus influencing the direction of evolution.