Physical elements at time of origin of life
Specify the physical elements which have contributed to the great amount of the available energy over the primitive earth during the time of origin of life?
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3.5 billion years ago, water cycle was faster than today, resulting in hard storms having the intense electrical discharges. There was also no chemical protection from ozone layer against the ultraviolet radiation. The temperatures within the atmosphere and over the planet surface were very high. Electricity, radiation and the heat constitutes the large available energy sources.
explain the importance of breathing in humans
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What do you understand by Pharynx?
Define nucleic acids in brief? Describe the historic origin of this name?
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What quantity of catalyst is used in the reaction it catalyzes? Answer: Catalysts are not used in the reactions they catalyze.
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