than elephants for experimental studies of evolution because: A) Bacteria evolve, but elephants do not B) We know much less about elephants than we do about bacteria, so it is harder to design experiments to study their evolution. C) Bacteria have much shorter life cycles than elephants, so we can study their evolution over thousands of generations during the lifetime of a single scientist. D) Bacteria are much lower on the tree of life than are elephants E) Elephants have much less genetic variation than bacteria

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Prokaryotic evolution

The term evolution means the gradual change or a transformation from a simple or primitive state to a complex or advanced state. Prokaryotic evolution is a concept that involves the evolution of the form and function of most primitive organisms (prokaryotes) through several stages and changes to form diverse life as a part of organic evolution.