Answer:
living organisms
Step-by-step explanation:
The word organic comes from Greek word "organikos "which relates to an organ.
Earlier it was thought that organic compounds are related to only living matter. It was thought that the compounds cannot be synthesized outside living organism.
But later on after synthesis of urea in 1828 from inorganic compounds lead to end of the myth.
Then, organic compounds were confined to hydrocarbons, later it was also extended to other compounds containing heteroatoms like nitrogen, sulfur, oxygen.