Which hypothesis helps to explain why all organisms share the same genetic code? A. Early Earth had an abundance of volcanoes and lacked an ozone layer. B. Deep-sea vents provided the energy needed for the first organic compounds to form. C. Microspheres divided and share common characteristics with present-day cells. D. Self-replicating RNA molecules passed on genetic information.

Which of the following statements regarding anfinsen's denaturing experiments with ribonuclease a (rnase a) are valid? exposing the denatured protein to air oxidation and then dialysis to remove urea restored the protein to its original functionality. removing urea by dialysis and then allowing air oxidation of the denatured protein restored the protein to its original functionality. denaturing the protein with both urea and β-mercaptoethanol yielded an inactive protein. anfinsen concluded that protein folding is determined by its primary sequence.

What did the first language sound like

This is a biological reaction due to a stimulus. i need this quickly !