Final answer:
Schistosoma hematobium is the parasite whose ova may be found in the urinary sediment.
Step-by-step explanation:
The parasite whose ova may be found in the urinary sediment is Schistosoma hematobium. It is a parasite that infects humans and has a complex life cycle involving freshwater snails as intermediate hosts. The eggs of Schistosoma hematobium are excreted in the urine of infected individuals and can contaminate freshwater habitats, leading to reinfection of snails and completion of the parasite's life cycle.