abstract variation on the theme of life originated in water 3.8 billion years ago

abiogenesis acids amino appearance archean atmosphere bc biogenesis biology boiling broth cell chemical coacervate concept cooking death dna emergence era helix life matter microcosm microcosmos microworld molecules occurrence ocean onset organic oxygenfree panspermia prehistoric primitive primordial procreation protein protoplasm pulp reaction science selfassembly soup world