Speciation Flashcards

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Note: We may include questions that have multiple correct answers. It’s useful to remember specific examples to understand these concepts better.

Who independently proposed the theory of evolution by natural selection alongside Charles Darwin?

Alfred Russel Wallace independently proposed the theory of evolution by natural selection alongside Charles Darwin.

What is Alfred Russel Wallace best known for?

Wallace is best known for his research on warning colouration in species and developing the theory of speciation.

What is speciation?

Speciation is an evolutionary process that leads to the formation of new and distinct species when populations can no longer interbreed to produce fertile offspring.

What are two types of isolation that can lead to speciation?

The two types of isolation that can lead to speciation are reproductive isolation and geographical isolation.

How did Charles Darwin’s study of finches on the Galapagos Islands contribute to the theory of speciation?

Darwin observed that finches on different islands had different beak shapes adapted to their food sources, leading him to conclude that geographical isolation caused them to become separate species.

What happens to populations during geographical isolation that leads to speciation?

During geographical isolation, populations adapt to different environments, leading to changes in phenotypes through natural selection until they become distinct species that cannot interbreed.

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