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What are the six kingdoms?
archaea, bacteria, protista, fungi, plantae, animalia
What does a modern taxonomist consider when classifying an organism?
- cladistsics- uses shared and derived characteristics
What is evolution?
the idea that species change over time
Who described natural selection?
Explain natural selection.
process where organisms with favorable variations survive and reproduce at a higher rate than organisms with unfavorable traits
Where did Darwin do much of his work? What were two of his major observations?
- England and Galapagos
- adaptive radiation
- convergent evolution
What is adaptive radiation?
many species evolve from single ancestral species
What is convergent evolution?
unrelated species become more similar as they adapt to same environment
Explain why artifical selection is important to animal breeders.
because they can pick parents with most desireable traits
According to fossil evidence, how long ago did life begin on Earth?
3-4 billion years ago
Define and Explain reporductive isolation
inability of formerly unbreeding species to reproduce
Define and Explain geographic isolation
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