Download Evolution in Action

April 16, 2018 | Author: Anonymous | Category: , Social Science, Anthropology, Human Evolution
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Evolution in Action

Convergent Evolution • Process by which different species evolve similar traits due to similar selective pressures • Each species came from different ancestors but evolved similar adaptations to similar habitats

Evolution •Species with same ancestor become more and more different until they are different species •Ex: Galapagos finches •Primates/Humans

Adaptive Radiation •A type of divergent evolution in which each the population of a new species fills many niches in the environment •Niche: the unique position occupied by a species (location and function within that ecological community)

Artificial Selection • When a human breeder chooses individuals that will parent the next generation • Humans first selected domestic dogs from a wolf population approximately 15,000 years ago

Coevolution • When 2 or more species influence each other’s evolution • Evolution is ongoing so in any given environment, many species may be evolving at once • Each species is part of the forces of natural selection that act upon the other species • Ex: Ants and Acacia tree: ant protects tree from herbivores and insects and tree provides food for ant

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