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Zoology or Animal Biology

Where did life originate?


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June 01, 2011 2:45AM

Life originated in the oceans over 3 billion years ago. The oceans were full of many organic molecules and this is where life assembled. According to modern evolutionary theories and the studies of cell development, many scientists have concluded that life originated as small prokaryotic life forms and as bacteria under the water. Some of these cells later evolved into larger organisms, such as fish, and some developed legs where they traveled on land and created terrestrial life.