Which One of the Following Statements About the Evolution of Complex

Multiple Choice

Which one of the following statements about the evolution of complex characters,such as powered flight,is false?

A) Phylogenetic analysis using cladistics can help reveal the sequence leading to the evolution of a complex character.
B) Usually a single mutation in a key gene controlling development leads to the simultaneous appearance of the complex character.
C) Often the initial stage in the evolution of a complex character was an adaptation to some unrelated selection pressure.
D) All of the intermediate stages in the evolution of a complex character contributed to the fitness of the species.
E) Long periods of time are required for the evolution of complex characters.