I want to know the answer to the following question:
What are the stems used for in cacti?
All the background I'm provided with is that "Stems mainly provide support to the leaves and reproductive structures, but can store water in succulent plants such as cacti, food as in potato tubers, or reproduce vegetatively as in the stolons of strawberry plants or in the process of layering.". Is that enough to answer the question?
Answer: yes