Which of the following is the correct sequence of events in the origin of life? i. formation of protocells ii. synthesis of organic monomers iii. synthesis of organic polymers iv. formation of dna-based genetic systems

II, III, I, IV

Explanation:

The correct sequence of events in the origin of life is

II.  Synthesis of organic monomers,

III. Synthesis of organic polymers,

I. Formation of protocells,

IV. Formation of DNA-based genetic systems.

monomers→polymers→protocells→ DNA-based genetic systems

b.have there own function.

the relative atomic mass of an element is the mass of one atom of that element, relative to 1/12th of the mass of a  1212c atom. to convert to an absolute mass in kg, it is necessary to multiply by  1.661×10−271.661×10−27.

the relative atomic mass is roughly equal to the number of neutrons, plus the number of protons, in the nucleus of the atom.

for elements with more than one stable isotope (different types of nucleus with different numbers of neutrons but the same number of protons), the quoted mass is usually the average mass, weighted by the relative abundance of the different isotopes.