Although absolute distinctions between the ʺmost evolvedʺ protobiont and the first living cell are unclear, biologists generally agree that one major difference is that the typical protobiont could not

#Question id: 4989

#XL - S Microbiology

If the malesʹ halteres have species-specific size, shape, color, and use in courtship displays, and if the speciesʹ ranges overlap, then the speciation events may have been driven, at least in part, by which of the following?

#Question id: 4990

#XL - S Microbiology

Fly species W, found in a certain part of the island, produces fertile offspring with species Y. Species W does not produce fertile offspring with species X or Z. If no other species can hybridize, then species W and Y

#Question id: 4991

#XL - S Microbiology

Which of these fly organs, as they exist in current fly populations, best fits the description of an exaptation?

#Question id: 4992

#XL - S Microbiology

The existence of the phenomenon of exaptation is most closely associated with which of the following reasons that natural selection cannot fashion perfect organisms?

#Question id: 4993

#XL - S Microbiology

If the prokaryotic flagellum developed from assemblages of proteins that originally were not involved with cell motility but with some other function instead, then the modern prokaryotic flagellum is a(n)

#Question id: 4997

#XL - S Microbiology

If one organ is an exaptation of another organ, then what must be true of these two organs?