Bacteria provides a valuable clue to the origin of life on Earth. Which of these is the most likely process by which bacteria wa
s formed? A. appearance of new plants B. adaptation of living things C. geological transformation of Earth's crust D. chemical transformation of non-living matter
The appropriate answer is d. chemical transformation of non living matter. Scientists believe that life originated on earth when the conditions present led to the formation of chemicals that contain carbon, nitrogen and oxygen. These are the primary components of organic matter and consequently all living things. Inorganic matter in ancient oceans could have been transformed into amino acids by complex reactions involving extreme heat or lightening.
