6Quizzes
Evolution
Explore the unifying theory of all biology. Our evolution quizzes test your knowledge of natural selection, the evidence for evolution, speciation, and the mechanisms that drive change in populations over time. Start your journey!
Taxonomy and Classification
Why we classify life, Linnaeus, taxonomic ranks, binomial naming rules, and the domains and kingdoms.
Evidence for Evolution
Fossils, comparative anatomy, and molecular evidence.
Mechanisms of Evolution
Genetic drift, gene flow, and mutation.
Natural Selection
Darwin's theory and the concepts of variation and fitness.
Phylogenetics
How to read and interpret phylogenetic trees.
Articles
Read About Evolution
Long-form articles on the same ground as these quizzes.
Dictionary
Key Evolution Terms
Plain definitions, with how to say each word and where it comes from.
- Adaptation
An adaptation is an inherited trait, shaped by natural selection, that helps an organism survive and reproduce in its current environment.
- Adaptive radiation
Adaptive radiation is the rapid evolution of many new species from one ancestral species, each adapted to a different way of life or ecological niche.
- Analogous structures
Analogous structures are body parts in different species that look alike or do the same job but evolved separately rather than from a shared ancestor.
- Artificial selection
Artificial selection is the process in which people choose which plants or animals breed, so that the traits they want become more common over generations.
- Bottleneck effect
The bottleneck effect is the loss of genetic variation that follows a sudden, steep fall in population size, leaving only a few survivors to breed.
- Coevolution
Coevolution is the process in which two or more species that interact closely each drive evolutionary change in the other over many generations.
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