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Delve into the world of evolution with this comprehensive study guide. Learn about species, adaptations, mutations, extinction, fossils, homologous and vestigial structures, natural selection, and more. Explore how organisms change and adapt over time. Perfect for students and enthusiasts of anthropology.
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A species is a group of organisms that look alike and can reproduce among themselves.
An adaptation is a feature or trait that helps an organism to live in a certain environment.
A sudden change in a gene is called a mutation. It can be harmful or helpful .
Animals or plants that no longer exist are said to be extinct.
Amber is fossilized tree sap in which ancient insects are sometimes preserved.
Homologous structures are body parts that have the same basic structure like the arm of a human, the leg of a cat, the flipper of a whale, or the wing of a bat.
Vestigial structures are body parts that seem to have no function like a human being’s appendix.
Darwin’s theory of natural selection is that offspring with the most favorable traits survive and reproduce.
Differences in traits among organisms in a species is called variation.
