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Ch 10 biology

QuestionAnswer
Darwin organisms on Galapogos were unique, HMS Beagle, The Origin of Species
Evolution Theory that species change over time
Natural Selection Mechanism of evolution, changes allele frequencies, TB bacteria
Punctuated Equilibrium evolution occurs in short spurts
Gradualism evolution occurs slowly over time
Evidence for Evolution
Fossil Record organisms have become more complex, bones, footprints, dead
organisms
Homologous structures same structure
Vestigial structures structures without a function
DNA evidence
Selective Pressure reduced when resources are available, increase when resources are scarce
Divergence leads to speciation
Adaptation species becoming better suited for its environment
Common Ancestor results in shared characteristics, Darwin’s Finches
Populations become different when separated
Competition comes from scarcity of resources
Tuberculosis kills more adults than any other infectious disease
Subspecies not different enough to be separate species, become increasingly different, show divergence, differ genetically
Speciation divergence, natural selection, adaptation
Extinction species that have disappeared permanently
Created by: evroman
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