What do scientist think life developed from?

Answer 1

Scientist think a lot of different thing on the question of abiogenesis. From life beginning around hot smokers on the ocean floor, to the RNA world hypothesis on to extraterrestrial origins of life's precursor molecules. Google the Miller - Urey experiment and see the precursor molecules experiments and the latest work on abiogenesis in the links to the wiki article.

Answer 2

Scientists theorize that life on Earth developed from simple molecules like amino acids and nucleotides that eventually formed more complex structures through processes like chemical reactions and natural selection. This theory is known as abiogenesis.