Evolution and Natural Selection

Front

What is a vestigial structure?

Back

A vestigial structure is a body part that has no function now and is just the remains from an ancestor.

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What is natural selection?

Back

Natural selection is the process where better adapted organisms survive to pass traits along to their offspring.

Front

What is variation in biology?

Back

Variation refers to the genetic differences between organisms of the same species.

Front

What is genetic variation?

Back

Genetic variation is the differences in DNA among individuals.

Front

Why are advantageous traits more likely to be passed onto offspring?

Back

Advantageous traits are more likely to be passed onto offspring because they increase the chances of survival and reproduction.

Front

What is evolution?

Back

Evolution is the change in the heritable characteristics of biological populations over successive generations.

Front

What are homologous structures?

Back

Homologous structures are body parts that share a common ancestry, even if they have different functions.

Front

What are analogous structures?

Back

Analogous structures are body parts that have similar functions but do not share a common ancestry.

Front

What is adaptation?

Back

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

Front

What is the role of mutations in evolution?

Back

Mutations introduce new genetic variations, which can lead to new traits in a population.