Intro to Evolution and Natural Selection

Front

What does 'evolution' mean?

Back

Genetic change over time in a population.

Front

Why do frogs reproduce so many eggs?

Back

The more offspring, the more likely some will survive.

Front

What are homologous structures?

Back

Structures with the same parts but different functions, indicating common ancestry.

Front

Who proposed the concepts of Survival of the Fittest and Evolution?

Back

Charles Darwin.

Front

What is not evidence for evolution?

Back

All of these are evidence for evolution.

Front

What is natural selection?

Back

The process where organisms better adapted to their environment tend to survive and produce more offspring.

Front

What are vestigial structures?

Back

Body parts that have lost their original function through evolution.

Front

What is speciation?

Back

The formation of new and distinct species in the course of evolution.

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What is adaptive radiation?

Back

The process by which organisms diversify rapidly into a wide variety of forms to adapt to different environments.

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What is fitness in evolutionary terms?

Back

The ability of an organism to survive and reproduce in its environment.