cardinal mathematical groups have formed in the study of this question: those who believe birds are a direct result of dinosaurs and those who feel dinosaurs and birds mustiness have had a common ancestor. Determining which view is reclaim is a matter of opinion based on fact. The primary(prenominal) problem involves the use of cladistics or phylogenetic systematics to group organisms according to characteristics they share. When one looks at dinosaur fossils, he or she whitethorn feel that certain characteristics are used for something entirely diametric ...If you want to get a full essay, order it on our website: Ordercustompaper.com
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