Evolution/Natural Selection Flashcard

Front

What is natural selection?

Back

The process by which organisms that are best adapted to their environment are most likely to survive and reproduce.

Front

What are adaptations?

Back

Traits that help an organism survive in its environment, such as camouflage, ability to survive cold weather, and hunting skills.

Front

What theory explains that organisms with traits better suited to their environment are more likely to survive?

Back

Natural Selection.

Front

What is an example of adaptation in animals?

Back

The fur of the snowshoe rabbit changes color in winter to blend in with its surroundings.

Front

What do we call a species from which other species have evolved?

Back

A common ancestor.

Front

What is competition in the context of natural selection?

Back

The struggle between organisms for limited resources such as food, space, and mates.

Front

What is the significance of variation in a population?

Back

Variation provides the raw material for natural selection, allowing some individuals to survive and reproduce better than others.

Front

How does camouflage help an organism?

Back

Camouflage allows an organism to blend in with its environment, making it harder for predators to spot them.

Front

What is the role of environmental changes in evolution?

Back

Environmental changes can create new challenges that drive natural selection, leading to adaptations in species.

Front

What is extinction?

Back

The end of an organism or a species, often due to inability to adapt to changing environments.