Formation of more complex and specialized organisms from the simple and less elaborated forms is called
Retrogressive evolution
Progressive evolution
Microevolution
Macroevolution
Australopithecus is also called
Praying mantis is a good example of
Forelimbs of cat, lizard used in walking; forelimbs of whale used in swimming and forelimbs of bats used in flying are an example of
Bacteriophage transfers $DNA$ from donor to recipient cell, this is called
Louis Pasteur by careful experimentation demonstrated that/the