Ferritin is an intracellular protein storing iron. It is found in hemoglobin that aids in metabolism function. Meanwhile, glycogen is a carbohydrate consist of glucose which can be hydrolyzed if needed. The answer then is that both ferritin and glycogen functions by storing the materials needed by an organism like humans.
I think it's the first and second option but I could be wrong because I don't know much about deserts :)
Osmosis is a process, this process involves molecules of a solvent to move through a semipermeable. It is basically purifies something. But no it does not cause things to grow it can help but it does not cause it
...require a living host cell to survive.
