He called them the seven pillars of life. Here is basically what they are;
1. Program - Life has some kind of organized plan to operate through such as the nucleic acid and amino acid system.
2. Improvization - A living thing can change its plan in response to its environment.
3. Compartmentalization - A living thing must have separated spaces for necessary reactions to prevent other ingredients from messing up the reactions.
4. Energy - Living things require energy.
5. Regeneration - Living things must have a system to repair or restore damaged or lost components or processes.
6. Adaptability - A living thing responses to changes, dangers, and needs.
7. Seclusion - Chemical pathways must be separated.
Yes, I think Origin of Life would be an appropriate category.