Step 1: Understanding Nosema.
Nosema, specifically Nosema apis, is known as a microsporidian, a group of spore-producing unicellular parasites. It mainly infects honeybees. Describing it as a hyperparasite is correct as it parasitizes bees, which themselves can host various parasitic mites (like Varroa destructor). The reason accurately explains its hyperparasitic nature, living in another organism which itself can be a host to other parasites.