Question

describe briefly the origin of life on earth

Answer 1

first of all life started on earth from the water present on the earth. Small prokaryotic Cells were found. These got developed on changed into eukaryotes.
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Answer 2

Origin of life on earth was explained by experiment conducted by miller and urey. they suggested that the first primitive organisms arised from simple inorganic molecule from chemical synthesize . they assembled an atmosphere similar to early earth containing molecules like ammonia methane and hydrogen sulphide but no oxygen over water . temperature of about 100 c was maintained and sparks were passed to stimulate lightening at the end of the week 15% of carbon had converted into simple compounds including amino acids which make up proteins