How did scientists form the geologic time scale?

how is this scale organized?

what processes changed earth’s surfaces during precambrian time?

The organelle pictured is found in cells of and is theorized to have once been an independent organism.

Organisms that successfully adapt will leave to grownone of the above

2. how does the miller-urey experiment fall short of demonstrating that life can arise from inorganic molecules? explain. a. it doesn't show a leap between a collection of amino acids and a single-celled organism. b. it recreates the conditions that existed at the earth's beginning, but no molecules form as a result. c. it doesn't provide evidence of the formation of amino acids. d. it doesn't show how multicellular organisms developed from unicellular organisms