25.1 origin of life

Question 1

earliest evidence of life

Answer 1

3.5 billion yrs old

Question 2

how did life form?

Answer 2

1) synthesis of organic molecules (amino acids and nucleotides)
2) joining of these molecules into macromolecules (proteins and nucleic acids)
3) packaging these molecules into protobionts
4) origin of self replicating molecules