Answer:
Reproductive cell cycle theory
A eukaryotic cell has far more organelles and most prominently, has a nucleus. A prokaryotic cell stores it's DNA in it's cytoplasm.
Each macromolecule type has its own structure and function:
Nucleic acids are DNA and RNA. ...
Proteins, which contain polymers of amino acids, provide both functional and structural functions to cells. ...
Carbohydrates provide short-term energy storage to cells. ...
Lipids, or fatty acids, provide the long-term storage.
The medicine want advanced enough to fight off the sicknesses and doctors weren't very knowledgeable