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Unformatted text preview: STUDY GUIDE: LECTURE 13 DARWIN AND HIS THEORY OF "DESCENT WITH MODIFICATION" FOR THE ORIGIN AND DIVERSITY OF SPECIES "Seen in the light of evolution , Biology is, perhaps, intellectually the most satisfying and inspiring science. Without that light it becomes a pile of sundry facts - some of them interesting or curious but making no meaningful picture as a whole". Theodosius Dobzhansky (1973) Hence, both in space and time, we seem to be brought somewhat near to that great fact that mystery of mysteries -- the first appearance of new beings on this earth." Charles Darwin (1845) writing about the creatures of the Galapagos Islands READING : Red/Black Campbell, 7 th ed. pgs. 441-444 Green Campbell, 6 th ed, pgs 428-435 TERMINOLOGY : phylogeny / phylogenetic tree (note: watch your spelling: phylogenetic , not phylogenic) evolution (be complete, i.e., include the often in response to part of the definition) extant (as in an extant species ) Galapagos Islands (where they are) archipelago an endemic species form of an organism (form includes what three main aspects of an organism) morphology of an organism adaptation, adaptive trait fit (as in a species or individual is fit to its environment ) convergent evolution continued QUESTIONS...
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