The concept that the species have changed over a long period of time is known as
Ecosystem
Spontaneous generation
Organic evolution
Genetic recombination
Which of the following breakup water into hydrogen and oxygen on early earth?
Following are the two statements regarding the origin of life.
$(A)$ The earliest organisms that appeared on the earth were nongreen and presumably anaerobes.
$(B)$ The first autotrophic organisms were the chemoautotrophs that never released oxygen.Of the above statements which one of the following options is correct?
Write an explanatory note on origin of life.
Finding of miller's experiment on origin of life has provided evidence for the