10 Questions
What do homologous structures share?
Similar embryonic origin
What does biogeography provide evidence of?
All of the above
What is the main function of vestigial structures?
Serve important functions in the organism's ancestors
Why is genetic variation a necessity for evolutionary change?
To allow populations to evolve in response to changing environmental variables
What did Lamarck's hypothesis propose?
Organisms changed their behavior in response to environmental change, which modified their organs and their offspring inherited those changes
What did Darwin observe about species from South America and the Galápagos Islands?
They resembled living species from the same region and other species from nearby regions, leading him to hypothesize about colonization and speciation
What is the main difference between natural selection and artificial selection?
Natural selection increases the adaptation of organisms to their environment over time, while artificial selection involves humans modifying other species through breeding for desired traits
What does the theory of evolution by natural selection primarily emphasize?
Adaptation of organisms to their environment through natural selection, leading to the origin of new species
What is the principle of uniformitarianism?
The mechanisms of change are constant over time
What is homology?
Structural or molecular similarities in related species, often different in function but similar in structure
Test your knowledge of the evolution theories that influenced Darwin's theory of descent with modification, including gradualism, Hutton's theory, Lamarck's hypothesis, and catastrophism. Explore the concepts of geological change, accumulation of small changes, and the impact of environmental factors on organism behavior and structures.
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