-The best classification system is that which most closely
A)unites organisms that possess similar morphologies. B)conforms to traditional, Linnaean taxonomic practices. C)reflects evolutionary history. D)reflects the basic separation of prokaryotes from eukaryotes.
Linnaeus was a "fixist" who believed that species remained fixed in the form in which they had been created.Linnaeus would have been uncomfortable with
A)classifying organisms using the morphospecies concept. B)the scientific discipline known as taxonomy. C)phylogenies. D)nested, ever-more inclusive categories of organisms. E)a hierarchical classification scheme.
If,someday,an archaean cell is discovered whose rRNA sequence is more similar to that of humans than the sequence of mouse rRNA is to that of humans,the best explanation for this apparent discrepancy would be
A)homology. B)homoplasy. C)common ancestry. D)retro-evolution by humans. E)coevolution of humans and that archaean.