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Homology

Homology stuff for biology exam 1 part 7

QuestionAnswer
Homology definition Similar traits due to shared ancestry
Examples of homology bats, humans, and whole forelimbs
homology process divergent evolution
Analogy definition similar traits due to similar function, not shared ancestry
Examples of analogy birds and insect wings
Analogy process convergent evolution
Homologous structure definition features in different species due to shared ancestry
Examples of homologous structures Forelimbs of humans, bats, whales, and leaves on plants (spines on cacti, leaves on oak trees)
Examples of molecular homologies DNA sequences, Protein sequences, genetic code, developmental genes
Definition of vestigial structures Anatomical features or behaviors that lost their original function
Examples of vestigial structures Human appendix, whale pelvic bones, snake leg spurs
Convergent evolution definition unrelated species develop similar traits due to similar environmental pressures
Examples of convergent evolution wings of birds and insects
Complication of convergent evolution Analogous structures can mislead evolutionary relationships
Created by: josie_d
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